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nuprl-staging

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pointer-aliasing-intermediate-v2

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Northeastern University PRL 14

class A: def __init__(self, txt: str): self.u: A = None self.s: B = None self.txt = txt class B: def __init__(self, txt: str): self.u: B = None self.txt = txt e = A("e") c = B("c") g = A("g") a = A("a") f = A("f") i = B("i") d = B("d") e.u = g e.s = d c.u = d g.u = a g.s = d a.u = e a.s = c f.u = g f.s = c i.u = c d.u = c assert i.u.u.u.txt == "

c"

class A: def __init__(self, txt: str): self.u: A = None self.s: B = None self.txt = txt class B: def __init__(self, txt: str): self.u: B = None self.txt = txt e = A("e") c = B("c") g = A("g") a = A("a") f = A("f") i = B("i") d = B("d") e.u = g e.s = d c.u = d g.u = a g.s = d a.u = e a.s = c f.u = g f.s = c i.u = c d.u = c assert i.u.u.u.txt == "c"

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class A: def __init__(self, txt: str): self.x: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.txt = txt d = A("d") c = B("c") a = B("a") e = A("e") b = A("b") i = A("i") d.x = c c.p = e a.p = i e.x = a b.x = a i.x = a assert c.p.x.p.x.p.txt == "

i"

class A: def __init__(self, txt: str): self.x: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.txt = txt d = A("d") c = B("c") a = B("a") e = A("e") b = A("b") i = A("i") d.x = c c.p = e a.p = i e.x = a b.x = a i.x = a assert c.p.x.p.x.p.txt == "i"

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class A: def __init__(self, txt: str): self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.v: A = None self.txt = txt j = A("j") d = B("d") g = A("g") a = B("a") i = B("i") j.r = g d.v = g g.r = j a.v = j i.v = j assert j.r.r.r.r.txt == "

j"

class A: def __init__(self, txt: str): self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.v: A = None self.txt = txt j = A("j") d = B("d") g = A("g") a = B("a") i = B("i") j.r = g d.v = g g.r = j a.v = j i.v = j assert j.r.r.r.r.txt == "j"

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class A: def __init__(self, txt: str): self.v: A = None self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: A = None self.txt = txt j = A("j") c = B("c") g = B("g") h = A("h") f = A("f") a = B("a") d = B("d") j.v = h j.p = a c.z = h g.z = f h.v = f h.p = d f.v = j f.p = d a.z = f d.z = h assert c.z.p.z.p.z.v.v.txt == "

j"

class A: def __init__(self, txt: str): self.v: A = None self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: A = None self.txt = txt j = A("j") c = B("c") g = B("g") h = A("h") f = A("f") a = B("a") d = B("d") j.v = h j.p = a c.z = h g.z = f h.v = f h.p = d f.v = j f.p = d a.z = f d.z = h assert c.z.p.z.p.z.v.v.txt == "j"

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class A: def __init__(self, txt: str): self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.s: B = None self.y: B = None self.txt = txt d = A("d") i = B("i") j = A("j") c = B("c") e = A("e") d.o = e i.s = c i.y = c j.o = d c.s = i c.y = i e.o = j assert e.o.o.o.o.o.txt == "

d"

class A: def __init__(self, txt: str): self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.s: B = None self.y: B = None self.txt = txt d = A("d") i = B("i") j = A("j") c = B("c") e = A("e") d.o = e i.s = c i.y = c j.o = d c.s = i c.y = i e.o = j assert e.o.o.o.o.o.txt == "d"

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class A: def __init__(self, txt: str): self.y: B = None self.p: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: B = None self.v: A = None self.txt = txt b = A("b") e = B("e") d = B("d") j = A("j") i = B("i") g = B("g") f = A("f") b.y = e b.p = j e.x = d e.v = f d.x = g d.v = b j.y = d j.p = f i.x = g i.v = j g.x = e g.v = f f.y = e f.p = b assert e.x.x.v.p.p.y.txt == "

d"

class A: def __init__(self, txt: str): self.y: B = None self.p: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: B = None self.v: A = None self.txt = txt b = A("b") e = B("e") d = B("d") j = A("j") i = B("i") g = B("g") f = A("f") b.y = e b.p = j e.x = d e.v = f d.x = g d.v = b j.y = d j.p = f i.x = g i.v = j g.x = e g.v = f f.y = e f.p = b assert e.x.x.v.p.p.y.txt == "d"

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class A: def __init__(self, txt: str): self.z: B = None self.txt = txt class B: def __init__(self, txt: str): self.o: A = None self.q: A = None self.txt = txt h = A("h") i = B("i") b = B("b") h.z = i i.o = h i.q = h b.o = h b.q = h assert i.q.z.o.txt == "

h"

class A: def __init__(self, txt: str): self.z: B = None self.txt = txt class B: def __init__(self, txt: str): self.o: A = None self.q: A = None self.txt = txt h = A("h") i = B("i") b = B("b") h.z = i i.o = h i.q = h b.o = h b.q = h assert i.q.z.o.txt == "h"

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class A: def __init__(self, txt: str): self.o: B = None self.s: B = None self.txt = txt class B: def __init__(self, txt: str): self.w: A = None self.y: A = None self.txt = txt b = A("b") f = B("f") c = B("c") g = B("g") b.o = f b.s = g f.w = b f.y = b c.w = b c.y = b g.w = b g.y = b assert g.w.s.y.txt == "

b"

class A: def __init__(self, txt: str): self.o: B = None self.s: B = None self.txt = txt class B: def __init__(self, txt: str): self.w: A = None self.y: A = None self.txt = txt b = A("b") f = B("f") c = B("c") g = B("g") b.o = f b.s = g f.w = b f.y = b c.w = b c.y = b g.w = b g.y = b assert g.w.s.y.txt == "b"

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class A: def __init__(self, txt: str): self.t: B = None self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.r: B = None self.y: B = None self.txt = txt j = A("j") g = B("g") i = A("i") e = A("e") d = A("d") h = B("h") b = B("b") j.t = b j.r = d g.r = h g.y = b i.t = b i.r = j e.t = b e.r = d d.t = g d.r = j h.r = b h.y = b b.r = g b.y = g assert g.r.y.y.r.y.txt == "

b"

class A: def __init__(self, txt: str): self.t: B = None self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.r: B = None self.y: B = None self.txt = txt j = A("j") g = B("g") i = A("i") e = A("e") d = A("d") h = B("h") b = B("b") j.t = b j.r = d g.r = h g.y = b i.t = b i.r = j e.t = b e.r = d d.t = g d.r = j h.r = b h.y = b b.r = g b.y = g assert g.r.y.y.r.y.txt == "b"

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class A: def __init__(self, txt: str): self.s: A = None self.txt = txt class B: def __init__(self, txt: str): self.o: B = None self.txt = txt c = A("c") f = B("f") e = B("e") b = B("b") d = A("d") c.s = d f.o = b e.o = b b.o = f d.s = c assert d.s.s.s.s.txt == "

d"

class A: def __init__(self, txt: str): self.s: A = None self.txt = txt class B: def __init__(self, txt: str): self.o: B = None self.txt = txt c = A("c") f = B("f") e = B("e") b = B("b") d = A("d") c.s = d f.o = b e.o = b b.o = f d.s = c assert d.s.s.s.s.txt == "d"

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class A: def __init__(self, txt: str): self.p: A = None self.txt = txt class B: def __init__(self, txt: str): self.q: A = None self.txt = txt h = A("h") a = B("a") g = A("g") e = B("e") c = B("c") b = A("b") h.p = b a.q = h g.p = b e.q = b c.q = g b.p = g assert h.p.p.p.p.txt == "

g"

class A: def __init__(self, txt: str): self.p: A = None self.txt = txt class B: def __init__(self, txt: str): self.q: A = None self.txt = txt h = A("h") a = B("a") g = A("g") e = B("e") c = B("c") b = A("b") h.p = b a.q = h g.p = b e.q = b c.q = g b.p = g assert h.p.p.p.p.txt == "g"

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class A: def __init__(self, txt: str): self.y: A = None self.v: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.txt = txt h = A("h") i = B("i") g = A("g") e = A("e") d = A("d") a = B("a") h.y = g h.v = g i.p = e g.y = d g.v = h e.y = g e.v = g d.y = e d.v = h a.p = g assert a.p.v.v.txt == "

g"

class A: def __init__(self, txt: str): self.y: A = None self.v: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.txt = txt h = A("h") i = B("i") g = A("g") e = A("e") d = A("d") a = B("a") h.y = g h.v = g i.p = e g.y = d g.v = h e.y = g e.v = g d.y = e d.v = h a.p = g assert a.p.v.v.txt == "g"

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class A: def __init__(self, txt: str): self.x: B = None self.u: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.o: A = None self.txt = txt f = A("f") g = B("g") d = A("d") h = B("h") e = B("e") i = B("i") f.x = g f.u = i g.p = d g.o = d d.x = i d.u = h h.p = d h.o = f e.p = f e.o = f i.p = f i.o = f assert i.p.u.o.txt == "

f"

class A: def __init__(self, txt: str): self.x: B = None self.u: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.o: A = None self.txt = txt f = A("f") g = B("g") d = A("d") h = B("h") e = B("e") i = B("i") f.x = g f.u = i g.p = d g.o = d d.x = i d.u = h h.p = d h.o = f e.p = f e.o = f i.p = f i.o = f assert i.p.u.o.txt == "f"

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class A: def __init__(self, txt: str): self.r: A = None self.z: B = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.w: B = None self.txt = txt j = A("j") g = B("g") a = A("a") i = B("i") e = A("e") j.r = a j.z = i g.x = e g.w = i a.r = e a.z = i i.x = j i.w = g e.r = j e.z = i assert e.z.w.w.x.z.txt == "

i"

class A: def __init__(self, txt: str): self.r: A = None self.z: B = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.w: B = None self.txt = txt j = A("j") g = B("g") a = A("a") i = B("i") e = A("e") j.r = a j.z = i g.x = e g.w = i a.r = e a.z = i i.x = j i.w = g e.r = j e.z = i assert e.z.w.w.x.z.txt == "i"

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class A: def __init__(self, txt: str): self.u: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: B = None self.s: A = None self.txt = txt c = A("c") i = B("i") a = B("a") b = A("b") c.u = b i.x = a i.s = b a.x = i a.s = c b.u = c assert i.s.u.u.u.txt == "

c"

class A: def __init__(self, txt: str): self.u: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: B = None self.s: A = None self.txt = txt c = A("c") i = B("i") a = B("a") b = A("b") c.u = b i.x = a i.s = b a.x = i a.s = c b.u = c assert i.s.u.u.u.txt == "c"

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class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.txt = txt d = A("d") h = B("h") i = B("i") d.w = i h.x = d i.x = d assert h.x.w.x.txt == "

d"

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.txt = txt d = A("d") h = B("h") i = B("i") d.w = i h.x = d i.x = d assert h.x.w.x.txt == "d"

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class A: def __init__(self, txt: str): self.x: A = None self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.r: B = None self.x: A = None self.txt = txt c = A("c") b = B("b") d = B("d") g = A("g") j = B("j") c.x = g c.p = b b.r = j b.x = c d.r = b d.x = c g.x = c g.p = j j.r = d j.x = c assert g.p.x.x.x.x.txt == "

g"

class A: def __init__(self, txt: str): self.x: A = None self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.r: B = None self.x: A = None self.txt = txt c = A("c") b = B("b") d = B("d") g = A("g") j = B("j") c.x = g c.p = b b.r = j b.x = c d.r = b d.x = c g.x = c g.p = j j.r = d j.x = c assert g.p.x.x.x.x.txt == "g"

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class A: def __init__(self, txt: str): self.r: B = None self.x: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.s: A = None self.txt = txt a = A("a") e = B("e") h = A("h") a.r = e a.x = h e.x = h e.s = h h.r = e h.x = a assert a.r.x.x.txt == "

a"

class A: def __init__(self, txt: str): self.r: B = None self.x: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.s: A = None self.txt = txt a = A("a") e = B("e") h = A("h") a.r = e a.x = h e.x = h e.s = h h.r = e h.x = a assert a.r.x.x.txt == "a"

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class A: def __init__(self, txt: str): self.u: B = None self.y: A = None self.txt = txt class B: def __init__(self, txt: str): self.u: B = None self.s: B = None self.txt = txt a = A("a") d = B("d") f = A("f") c = A("c") i = A("i") j = A("j") g = B("g") a.u = d a.y = j d.u = g d.s = g f.u = g f.y = a c.u = g c.y = f i.u = g i.y = c j.u = g j.y = a g.u = d g.s = d assert a.u.u.u.txt == "

d"

class A: def __init__(self, txt: str): self.u: B = None self.y: A = None self.txt = txt class B: def __init__(self, txt: str): self.u: B = None self.s: B = None self.txt = txt a = A("a") d = B("d") f = A("f") c = A("c") i = A("i") j = A("j") g = B("g") a.u = d a.y = j d.u = g d.s = g f.u = g f.y = a c.u = g c.y = f i.u = g i.y = c j.u = g j.y = a g.u = d g.s = d assert a.u.u.u.txt == "d"

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class A: def __init__(self, txt: str): self.v: B = None self.t: A = None self.txt = txt class B: def __init__(self, txt: str): self.y: A = None self.t: A = None self.txt = txt j = A("j") b = B("b") a = B("a") e = B("e") h = A("h") d = B("d") j.v = e j.t = h b.y = j b.t = j a.y = h a.t = j e.y = h e.t = h h.v = e h.t = j d.y = j d.t = h assert b.y.t.v.y.t.txt == "

j"

class A: def __init__(self, txt: str): self.v: B = None self.t: A = None self.txt = txt class B: def __init__(self, txt: str): self.y: A = None self.t: A = None self.txt = txt j = A("j") b = B("b") a = B("a") e = B("e") h = A("h") d = B("d") j.v = e j.t = h b.y = j b.t = j a.y = h a.t = j e.y = h e.t = h h.v = e h.t = j d.y = j d.t = h assert b.y.t.v.y.t.txt == "j"

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class A: def __init__(self, txt: str): self.q: A = None self.z: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: B = None self.t: B = None self.txt = txt j = A("j") h = B("h") b = B("b") i = B("i") f = A("f") j.q = f j.z = b h.z = i h.t = b b.z = h b.t = h i.z = h i.t = h f.q = j f.z = h assert i.z.z.t.txt == "

h"

class A: def __init__(self, txt: str): self.q: A = None self.z: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: B = None self.t: B = None self.txt = txt j = A("j") h = B("h") b = B("b") i = B("i") f = A("f") j.q = f j.z = b h.z = i h.t = b b.z = h b.t = h i.z = h i.t = h f.q = j f.z = h assert i.z.z.t.txt == "h"

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class A: def __init__(self, txt: str): self.v: B = None self.s: B = None self.txt = txt class B: def __init__(self, txt: str): self.w: A = None self.txt = txt h = A("h") b = B("b") i = B("i") h.v = i h.s = i b.w = h i.w = h assert i.w.s.w.txt == "

h"

class A: def __init__(self, txt: str): self.v: B = None self.s: B = None self.txt = txt class B: def __init__(self, txt: str): self.w: A = None self.txt = txt h = A("h") b = B("b") i = B("i") h.v = i h.s = i b.w = h i.w = h assert i.w.s.w.txt == "h"

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class A: def __init__(self, txt: str): self.q: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: B = None self.x: B = None self.txt = txt f = A("f") h = B("h") i = B("i") f.q = h h.z = i h.x = i i.z = h i.x = h assert h.x.z.x.txt == "

i"

class A: def __init__(self, txt: str): self.q: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: B = None self.x: B = None self.txt = txt f = A("f") h = B("h") i = B("i") f.q = h h.z = i h.x = i i.z = h i.x = h assert h.x.z.x.txt == "i"

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class A: def __init__(self, txt: str): self.v: B = None self.q: A = None self.txt = txt class B: def __init__(self, txt: str): self.z: B = None self.w: B = None self.txt = txt d = A("d") i = B("i") b = B("b") e = A("e") a = A("a") h = B("h") c = B("c") d.v = h d.q = e i.z = h i.w = h b.z = i b.w = i e.v = h e.q = d a.v = c a.q = d h.z = c h.w = b c.z = h c.w = b assert d.q.v.z.z.txt == "

h"

class A: def __init__(self, txt: str): self.v: B = None self.q: A = None self.txt = txt class B: def __init__(self, txt: str): self.z: B = None self.w: B = None self.txt = txt d = A("d") i = B("i") b = B("b") e = A("e") a = A("a") h = B("h") c = B("c") d.v = h d.q = e i.z = h i.w = h b.z = i b.w = i e.v = h e.q = d a.v = c a.q = d h.z = c h.w = b c.z = h c.w = b assert d.q.v.z.z.txt == "h"

d

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h

c

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h

e

d

x

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x

class A: def __init__(self, txt: str): self.u: A = None self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.w: B = None self.v: A = None self.txt = txt c = A("c") b = B("b") i = B("i") f = B("f") a = A("a") e = B("e") c.u = a c.r = a b.w = e b.v = c i.w = f i.v = c f.w = i f.v = c a.u = c a.r = c e.w = i e.v = c assert e.w.v.r.r.txt == "

c"

class A: def __init__(self, txt: str): self.u: A = None self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.w: B = None self.v: A = None self.txt = txt c = A("c") b = B("b") i = B("i") f = B("f") a = A("a") e = B("e") c.u = a c.r = a b.w = e b.v = c i.w = f i.v = c f.w = i f.v = c a.u = c a.r = c e.w = i e.v = c assert e.w.v.r.r.txt == "c"

e

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a

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a

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class A: def __init__(self, txt: str): self.q: A = None self.u: A = None self.txt = txt class B: def __init__(self, txt: str): self.z: B = None self.p: A = None self.txt = txt h = A("h") c = B("c") b = B("b") f = A("f") h.q = f h.u = f c.z = b c.p = h b.z = c b.p = f f.q = h f.u = h assert c.p.u.u.txt == "

h"

class A: def __init__(self, txt: str): self.q: A = None self.u: A = None self.txt = txt class B: def __init__(self, txt: str): self.z: B = None self.p: A = None self.txt = txt h = A("h") c = B("c") b = B("b") f = A("f") h.q = f h.u = f c.z = b c.p = h b.z = c b.p = f f.q = h f.u = h assert c.p.u.u.txt == "h"

c

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class A: def __init__(self, txt: str): self.q: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: B = None self.txt = txt e = A("e") b = B("b") d = A("d") g = A("g") i = B("i") h = A("h") j = A("j") e.q = i b.p = i d.q = i g.q = i i.p = b h.q = b j.q = i assert e.q.p.p.p.txt == "

b"

class A: def __init__(self, txt: str): self.q: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: B = None self.txt = txt e = A("e") b = B("b") d = A("d") g = A("g") i = B("i") h = A("h") j = A("j") e.q = i b.p = i d.q = i g.q = i i.p = b h.q = b j.q = i assert e.q.p.p.p.txt == "b"

e

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b

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b

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e

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x

class A: def __init__(self, txt: str): self.v: B = None self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: B = None self.txt = txt j = A("j") g = B("g") d = B("d") j.v = g j.p = d g.z = d d.z = g assert g.z.z.z.txt == "

d"

class A: def __init__(self, txt: str): self.v: B = None self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: B = None self.txt = txt j = A("j") g = B("g") d = B("d") j.v = g j.p = d g.z = d d.z = g assert g.z.z.z.txt == "d"

g

d

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d

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d

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class A: def __init__(self, txt: str): self.r: A = None self.q: A = None self.txt = txt class B: def __init__(self, txt: str): self.u: B = None self.txt = txt j = A("j") i = B("i") b = A("b") a = A("a") h = B("h") c = A("c") j.r = b j.q = c i.u = h b.r = c b.q = a a.r = j a.q = b h.u = i c.r = j c.q = a assert a.r.q.r.q.r.txt == "

j"

class A: def __init__(self, txt: str): self.r: A = None self.q: A = None self.txt = txt class B: def __init__(self, txt: str): self.u: B = None self.txt = txt j = A("j") i = B("i") b = A("b") a = A("a") h = B("h") c = A("c") j.r = b j.q = c i.u = h b.r = c b.q = a a.r = j a.q = b h.u = i c.r = j c.q = a assert a.r.q.r.q.r.txt == "j"

a

j

c

j

c

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j

c

j

a

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x

class A: def __init__(self, txt: str): self.p: A = None self.txt = txt class B: def __init__(self, txt: str): self.u: A = None self.w: B = None self.txt = txt d = A("d") f = B("f") h = B("h") g = B("g") b = A("b") d.p = b f.u = d f.w = h h.u = b h.w = g g.u = b g.w = f b.p = d assert h.w.w.w.w.txt == "

g"

class A: def __init__(self, txt: str): self.p: A = None self.txt = txt class B: def __init__(self, txt: str): self.u: A = None self.w: B = None self.txt = txt d = A("d") f = B("f") h = B("h") g = B("g") b = A("b") d.p = b f.u = d f.w = h h.u = b h.w = g g.u = b g.w = f b.p = d assert h.w.w.w.w.txt == "g"

h

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class A: def __init__(self, txt: str): self.p: A = None self.x: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: B = None self.u: B = None self.txt = txt c = A("c") h = B("h") i = A("i") f = B("f") c.p = i c.x = i h.p = f h.u = f i.p = c i.x = c f.p = h f.u = h assert i.p.x.x.p.txt == "

i"

class A: def __init__(self, txt: str): self.p: A = None self.x: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: B = None self.u: B = None self.txt = txt c = A("c") h = B("h") i = A("i") f = B("f") c.p = i c.x = i h.p = f h.u = f i.p = c i.x = c f.p = h f.u = h assert i.p.x.x.p.txt == "i"

i

c

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x

class A: def __init__(self, txt: str): self.v: A = None self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.r: A = None self.txt = txt g = A("g") b = B("b") d = A("d") a = B("a") i = A("i") g.v = d g.o = d b.r = i d.v = i d.o = g a.r = d i.v = d i.o = d assert b.r.v.o.v.txt == "

d"

class A: def __init__(self, txt: str): self.v: A = None self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.r: A = None self.txt = txt g = A("g") b = B("b") d = A("d") a = B("a") i = A("i") g.v = d g.o = d b.r = i d.v = i d.o = g a.r = d i.v = d i.o = d assert b.r.v.o.v.txt == "d"

b

i

d

g

d

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x

d

g

d

i

b

x

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x

class A: def __init__(self, txt: str): self.q: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: A = None self.txt = txt f = A("f") c = B("c") a = B("a") j = B("j") g = B("g") h = A("h") d = B("d") f.q = a c.z = h a.z = h j.z = h g.z = f h.q = d d.z = f assert a.z.q.z.q.txt == "

a"

class A: def __init__(self, txt: str): self.q: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: A = None self.txt = txt f = A("f") c = B("c") a = B("a") j = B("j") g = B("g") h = A("h") d = B("d") f.q = a c.z = h a.z = h j.z = h g.z = f h.q = d d.z = f assert a.z.q.z.q.txt == "a"

a

h

d

f

a

x

x

x

a

f

d

h

a

x

x

x

class A: def __init__(self, txt: str): self.s: B = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.txt = txt j = A("j") h = B("h") g = A("g") f = A("f") j.s = h h.x = g g.s = h f.s = h assert g.s.x.s.txt == "

h"

class A: def __init__(self, txt: str): self.s: B = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.txt = txt j = A("j") h = B("h") g = A("g") f = A("f") j.s = h h.x = g g.s = h f.s = h assert g.s.x.s.txt == "h"

g

h

g

h

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h

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x

class A: def __init__(self, txt: str): self.x: A = None self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.q: B = None self.o: A = None self.txt = txt h = A("h") a = B("a") b = B("b") d = B("d") c = A("c") h.x = c h.o = c a.q = b a.o = h b.q = a b.o = c d.q = a d.o = h c.x = h c.o = h assert c.o.o.o.txt == "

h"

class A: def __init__(self, txt: str): self.x: A = None self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.q: B = None self.o: A = None self.txt = txt h = A("h") a = B("a") b = B("b") d = B("d") c = A("c") h.x = c h.o = c a.q = b a.o = h b.q = a b.o = c d.q = a d.o = h c.x = h c.o = h assert c.o.o.o.txt == "h"

c

h

c

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x

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h

c

h

c

x

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x

class A: def __init__(self, txt: str): self.s: A = None self.txt = txt class B: def __init__(self, txt: str): self.s: A = None self.w: A = None self.txt = txt e = A("e") g = B("g") f = A("f") a = A("a") e.s = f g.s = e g.w = e f.s = e a.s = f assert g.w.s.s.s.txt == "

f"

class A: def __init__(self, txt: str): self.s: A = None self.txt = txt class B: def __init__(self, txt: str): self.s: A = None self.w: A = None self.txt = txt e = A("e") g = B("g") f = A("f") a = A("a") e.s = f g.s = e g.w = e f.s = e a.s = f assert g.w.s.s.s.txt == "f"

g

e

f

e

f

x

x

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e

f

e

g

x

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x

class A: def __init__(self, txt: str): self.r: A = None self.s: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.y: A = None self.txt = txt e = A("e") j = B("j") h = B("h") c = A("c") b = B("b") g = A("g") a = B("a") e.r = c e.s = a j.p = e j.y = g h.p = g h.y = c c.r = g c.s = h b.p = c b.y = e g.r = e g.s = a a.p = e a.y = g assert j.y.r.s.txt == "

a"

class A: def __init__(self, txt: str): self.r: A = None self.s: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.y: A = None self.txt = txt e = A("e") j = B("j") h = B("h") c = A("c") b = B("b") g = A("g") a = B("a") e.r = c e.s = a j.p = e j.y = g h.p = g h.y = c c.r = g c.s = h b.p = c b.y = e g.r = e g.s = a a.p = e a.y = g assert j.y.r.s.txt == "a"

j

g

e

a

x

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x

a

e

g

j

x

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x

x

class A: def __init__(self, txt: str): self.v: B = None self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.w: B = None self.q: A = None self.txt = txt e = A("e") j = B("j") d = B("d") h = B("h") i = A("i") a = A("a") e.v = h e.w = j j.w = h j.q = a d.w = j d.q = i h.w = d h.q = i i.v = h i.w = h a.v = j a.w = d assert h.q.v.q.txt == "

i"

class A: def __init__(self, txt: str): self.v: B = None self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.w: B = None self.q: A = None self.txt = txt e = A("e") j = B("j") d = B("d") h = B("h") i = A("i") a = A("a") e.v = h e.w = j j.w = h j.q = a d.w = j d.q = i h.w = d h.q = i i.v = h i.w = h a.v = j a.w = d assert h.q.v.q.txt == "i"

h

i

h

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x

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h

i

h

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x

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.r: B = None self.txt = txt j = A("j") h = B("h") i = B("i") j.w = h h.r = i i.r = h assert h.r.r.r.txt == "

i"

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.r: B = None self.txt = txt j = A("j") h = B("h") i = B("i") j.w = h h.r = i i.r = h assert h.r.r.r.txt == "i"

h

i

h

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x

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x

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h

i

h

x

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x

class A: def __init__(self, txt: str): self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.r: B = None self.txt = txt h = A("h") d = B("d") c = A("c") f = B("f") b = A("b") e = A("e") a = B("a") h.o = c d.x = h d.r = a c.o = b f.x = e f.r = a b.o = e e.o = h a.x = h a.r = d assert d.r.x.o.o.o.txt == "

e"

class A: def __init__(self, txt: str): self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.r: B = None self.txt = txt h = A("h") d = B("d") c = A("c") f = B("f") b = A("b") e = A("e") a = B("a") h.o = c d.x = h d.r = a c.o = b f.x = e f.r = a b.o = e e.o = h a.x = h a.r = d assert d.r.x.o.o.o.txt == "e"

d

a

h

c

b

e

x

x

e

b

c

h

a

d

x

x

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.s: A = None self.txt = txt h = A("h") i = B("i") f = B("f") h.w = i i.p = h i.s = h f.p = h f.s = h assert h.w.p.w.txt == "

i"

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.s: A = None self.txt = txt h = A("h") i = B("i") f = B("f") h.w = i i.p = h i.s = h f.p = h f.s = h assert h.w.p.w.txt == "i"

h

i

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x

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x

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h

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h

x

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x

x

class A: def __init__(self, txt: str): self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.s: A = None self.o: A = None self.txt = txt i = A("i") f = B("f") d = B("d") e = A("e") c = A("c") h = B("h") a = A("a") i.o = c f.s = c f.o = c d.s = e d.o = e e.o = i c.o = a h.s = i h.o = e a.o = i assert i.o.o.o.o.o.o.o.txt == "

c"

class A: def __init__(self, txt: str): self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.s: A = None self.o: A = None self.txt = txt i = A("i") f = B("f") d = B("d") e = A("e") c = A("c") h = B("h") a = A("a") i.o = c f.s = c f.o = c d.s = e d.o = e e.o = i c.o = a h.s = i h.o = e a.o = i assert i.o.o.o.o.o.o.o.txt == "c"

i

c

a

i

c

a

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c

c

i

a

c

i

a

c

i

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.q: A = None self.w: A = None self.txt = txt a = A("a") h = B("h") b = B("b") a.w = b h.q = a h.w = a b.q = a b.w = a assert h.q.w.q.txt == "

a"

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.q: A = None self.w: A = None self.txt = txt a = A("a") h = B("h") b = B("b") a.w = b h.q = a h.w = a b.q = a b.w = a assert h.q.w.q.txt == "a"

h

a

b

a

x

x

x

x

a

b

a

h

x

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x

x

class A: def __init__(self, txt: str): self.o: A = None self.z: A = None self.txt = txt class B: def __init__(self, txt: str): self.w: A = None self.txt = txt d = A("d") i = B("i") c = A("c") g = A("g") e = B("e") d.o = g d.z = g i.w = c c.o = g c.z = d g.o = d g.z = c e.w = d assert g.z.z.z.o.o.txt == "

g"

class A: def __init__(self, txt: str): self.o: A = None self.z: A = None self.txt = txt class B: def __init__(self, txt: str): self.w: A = None self.txt = txt d = A("d") i = B("i") c = A("c") g = A("g") e = B("e") d.o = g d.z = g i.w = c c.o = g c.z = d g.o = d g.z = c e.w = d assert g.z.z.z.o.o.txt == "g"

g

c

d

g

d

g

x

x

g

d

g

d

c

g

x

x

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.o: A = None self.y: A = None self.txt = txt h = A("h") b = B("b") g = B("g") c = A("c") f = B("f") a = B("a") h.w = b b.o = c b.y = c g.o = c g.y = c c.w = b f.o = c f.y = h a.o = h a.y = c assert b.y.w.y.w.txt == "

b"

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.o: A = None self.y: A = None self.txt = txt h = A("h") b = B("b") g = B("g") c = A("c") f = B("f") a = B("a") h.w = b b.o = c b.y = c g.o = c g.y = c c.w = b f.o = c f.y = h a.o = h a.y = c assert b.y.w.y.w.txt == "b"

b

c

b

c

b

x

x

x

b

c

b

c

b

x

x

x

class A: def __init__(self, txt: str): self.o: B = None self.txt = txt class B: def __init__(self, txt: str): self.v: B = None self.txt = txt h = A("h") a = B("a") f = B("f") c = A("c") b = A("b") g = A("g") e = A("e") h.o = f a.v = f f.v = a c.o = a b.o = a g.o = a e.o = f assert c.o.v.v.v.txt == "

f"

class A: def __init__(self, txt: str): self.o: B = None self.txt = txt class B: def __init__(self, txt: str): self.v: B = None self.txt = txt h = A("h") a = B("a") f = B("f") c = A("c") b = A("b") g = A("g") e = A("e") h.o = f a.v = f f.v = a c.o = a b.o = a g.o = a e.o = f assert c.o.v.v.v.txt == "f"

c

a

f

a

f

x

x

x

f

a

f

a

c

x

x

x

class A: def __init__(self, txt: str): self.p: A = None self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.t: A = None self.s: A = None self.txt = txt f = A("f") c = B("c") e = A("e") d = B("d") a = A("a") j = A("j") f.p = a f.o = e c.t = f c.s = j e.p = a e.o = f d.t = f d.s = e a.p = j a.o = e j.p = e j.o = a assert d.t.o.o.p.o.txt == "

e"

class A: def __init__(self, txt: str): self.p: A = None self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.t: A = None self.s: A = None self.txt = txt f = A("f") c = B("c") e = A("e") d = B("d") a = A("a") j = A("j") f.p = a f.o = e c.t = f c.s = j e.p = a e.o = f d.t = f d.s = e a.p = j a.o = e j.p = e j.o = a assert d.t.o.o.p.o.txt == "e"

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class A: def __init__(self, txt: str): self.y: B = None self.txt = txt class B: def __init__(self, txt: str): self.s: B = None self.u: B = None self.txt = txt h = A("h") d = B("d") e = B("e") h.y = d d.s = e d.u = e e.s = d e.u = d assert d.u.u.s.txt == "

e"

class A: def __init__(self, txt: str): self.y: B = None self.txt = txt class B: def __init__(self, txt: str): self.s: B = None self.u: B = None self.txt = txt h = A("h") d = B("d") e = B("e") h.y = d d.s = e d.u = e e.s = d e.u = d assert d.u.u.s.txt == "e"

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class A: def __init__(self, txt: str): self.y: A = None self.x: B = None self.txt = txt class B: def __init__(self, txt: str): self.v: B = None self.txt = txt a = A("a") c = B("c") j = B("j") f = A("f") d = A("d") e = A("e") b = B("b") a.y = e a.x = b c.v = b j.v = c f.y = d f.x = c d.y = f d.x = b e.y = a e.x = c b.v = c assert a.y.x.v.v.v.v.txt == "

c"

class A: def __init__(self, txt: str): self.y: A = None self.x: B = None self.txt = txt class B: def __init__(self, txt: str): self.v: B = None self.txt = txt a = A("a") c = B("c") j = B("j") f = A("f") d = A("d") e = A("e") b = B("b") a.y = e a.x = b c.v = b j.v = c f.y = d f.x = c d.y = f d.x = b e.y = a e.x = c b.v = c assert a.y.x.v.v.v.v.txt == "c"

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class A: def __init__(self, txt: str): self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.s: B = None self.p: A = None self.txt = txt f = A("f") i = B("i") d = B("d") e = A("e") c = B("c") a = A("a") j = B("j") f.r = a i.s = j i.p = f d.s = c d.p = f e.r = a c.s = i c.p = f a.r = f j.s = i j.p = a assert i.s.s.s.s.txt == "

i"

class A: def __init__(self, txt: str): self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.s: B = None self.p: A = None self.txt = txt f = A("f") i = B("i") d = B("d") e = A("e") c = B("c") a = A("a") j = B("j") f.r = a i.s = j i.p = f d.s = c d.p = f e.r = a c.s = i c.p = f a.r = f j.s = i j.p = a assert i.s.s.s.s.txt == "i"

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class A: def __init__(self, txt: str): self.y: A = None self.txt = txt class B: def __init__(self, txt: str): self.w: B = None self.txt = txt h = A("h") d = B("d") a = A("a") g = A("g") j = A("j") b = B("b") h.y = j d.w = b a.y = h g.y = a j.y = h b.w = d assert j.y.y.y.y.y.y.txt == "

j"

class A: def __init__(self, txt: str): self.y: A = None self.txt = txt class B: def __init__(self, txt: str): self.w: B = None self.txt = txt h = A("h") d = B("d") a = A("a") g = A("g") j = A("j") b = B("b") h.y = j d.w = b a.y = h g.y = a j.y = h b.w = d assert j.y.y.y.y.y.y.txt == "j"

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class A: def __init__(self, txt: str): self.x: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.txt = txt i = A("i") a = B("a") g = A("g") j = B("j") i.x = g a.p = g g.x = i j.p = g assert i.x.x.x.x.txt == "

i"

class A: def __init__(self, txt: str): self.x: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.txt = txt i = A("i") a = B("a") g = A("g") j = B("j") i.x = g a.p = g g.x = i j.p = g assert i.x.x.x.x.txt == "i"

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class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.u: B = None self.txt = txt h = A("h") a = B("a") c = B("c") i = A("i") h.w = c a.x = i a.u = c c.x = i c.u = a i.w = c assert c.x.w.u.txt == "

a"

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.u: B = None self.txt = txt h = A("h") a = B("a") c = B("c") i = A("i") h.w = c a.x = i a.u = c c.x = i c.u = a i.w = c assert c.x.w.u.txt == "a"

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class A: def __init__(self, txt: str): self.r: B = None self.y: B = None self.txt = txt class B: def __init__(self, txt: str): self.s: B = None self.z: A = None self.txt = txt d = A("d") f = B("f") a = B("a") c = A("c") g = A("g") h = A("h") d.r = f d.y = f f.s = a f.z = d a.s = f a.z = d c.r = f c.y = a g.r = f g.y = f h.r = f h.y = f assert d.y.s.z.r.s.txt == "

a"

class A: def __init__(self, txt: str): self.r: B = None self.y: B = None self.txt = txt class B: def __init__(self, txt: str): self.s: B = None self.z: A = None self.txt = txt d = A("d") f = B("f") a = B("a") c = A("c") g = A("g") h = A("h") d.r = f d.y = f f.s = a f.z = d a.s = f a.z = d c.r = f c.y = a g.r = f g.y = f h.r = f h.y = f assert d.y.s.z.r.s.txt == "a"

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class A: def __init__(self, txt: str): self.o: B = None self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.u: A = None self.p: A = None self.txt = txt j = A("j") c = B("c") i = B("i") j.o = c j.p = c c.u = j c.p = j i.u = j i.p = j assert j.p.u.o.txt == "

c"

class A: def __init__(self, txt: str): self.o: B = None self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.u: A = None self.p: A = None self.txt = txt j = A("j") c = B("c") i = B("i") j.o = c j.p = c c.u = j c.p = j i.u = j i.p = j assert j.p.u.o.txt == "c"

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class A: def __init__(self, txt: str): self.r: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: B = None self.v: B = None self.txt = txt b = A("b") f = B("f") i = B("i") b.r = i f.p = i f.v = i i.p = f i.v = f assert b.r.p.v.txt == "

i"

class A: def __init__(self, txt: str): self.r: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: B = None self.v: B = None self.txt = txt b = A("b") f = B("f") i = B("i") b.r = i f.p = i f.v = i i.p = f i.v = f assert b.r.p.v.txt == "i"

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class A: def __init__(self, txt: str): self.w: B = None self.s: A = None self.txt = txt class B: def __init__(self, txt: str): self.t: B = None self.o: B = None self.txt = txt e = A("e") h = B("h") j = A("j") f = A("f") c = A("c") g = B("g") a = B("a") e.w = a e.s = c h.t = a h.o = g j.w = g j.s = f f.w = g f.s = j c.w = h c.s = f g.t = a g.o = h a.t = g a.o = g assert c.s.s.s.txt == "

f"

class A: def __init__(self, txt: str): self.w: B = None self.s: A = None self.txt = txt class B: def __init__(self, txt: str): self.t: B = None self.o: B = None self.txt = txt e = A("e") h = B("h") j = A("j") f = A("f") c = A("c") g = B("g") a = B("a") e.w = a e.s = c h.t = a h.o = g j.w = g j.s = f f.w = g f.s = j c.w = h c.s = f g.t = a g.o = h a.t = g a.o = g assert c.s.s.s.txt == "f"

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class A: def __init__(self, txt: str): self.t: A = None self.x: B = None self.txt = txt class B: def __init__(self, txt: str): self.u: B = None self.txt = txt e = A("e") j = B("j") i = B("i") d = A("d") a = A("a") b = B("b") f = A("f") e.t = f e.x = b j.u = b i.u = b d.t = f d.x = i a.t = f a.x = i b.u = j f.t = a f.x = b assert e.x.u.u.u.u.u.txt == "

j"

class A: def __init__(self, txt: str): self.t: A = None self.x: B = None self.txt = txt class B: def __init__(self, txt: str): self.u: B = None self.txt = txt e = A("e") j = B("j") i = B("i") d = A("d") a = A("a") b = B("b") f = A("f") e.t = f e.x = b j.u = b i.u = b d.t = f d.x = i a.t = f a.x = i b.u = j f.t = a f.x = b assert e.x.u.u.u.u.u.txt == "j"

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class A: def __init__(self, txt: str): self.y: A = None self.txt = txt class B: def __init__(self, txt: str): self.y: B = None self.txt = txt b = A("b") i = B("i") j = A("j") d = A("d") c = A("c") g = B("g") f = B("f") b.y = j i.y = g j.y = c d.y = b c.y = d g.y = i f.y = i assert g.y.y.y.txt == "

i"

class A: def __init__(self, txt: str): self.y: A = None self.txt = txt class B: def __init__(self, txt: str): self.y: B = None self.txt = txt b = A("b") i = B("i") j = A("j") d = A("d") c = A("c") g = B("g") f = B("f") b.y = j i.y = g j.y = c d.y = b c.y = d g.y = i f.y = i assert g.y.y.y.txt == "i"

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class A: def __init__(self, txt: str): self.q: B = None self.z: B = None self.txt = txt class B: def __init__(self, txt: str): self.r: A = None self.txt = txt g = A("g") i = B("i") f = A("f") d = A("d") e = B("e") j = B("j") g.q = j g.z = j i.r = d f.q = j f.z = e d.q = e d.z = i e.r = f j.r = d assert i.r.q.r.txt == "

f"

class A: def __init__(self, txt: str): self.q: B = None self.z: B = None self.txt = txt class B: def __init__(self, txt: str): self.r: A = None self.txt = txt g = A("g") i = B("i") f = A("f") d = A("d") e = B("e") j = B("j") g.q = j g.z = j i.r = d f.q = j f.z = e d.q = e d.z = i e.r = f j.r = d assert i.r.q.r.txt == "f"

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class A: def __init__(self, txt: str): self.r: B = None self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.r: B = None self.txt = txt j = A("j") h = B("h") a = B("a") f = A("f") j.r = h j.p = h h.p = f h.r = a a.p = j a.r = h f.r = h f.p = h assert a.r.p.r.txt == "

h"

class A: def __init__(self, txt: str): self.r: B = None self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.r: B = None self.txt = txt j = A("j") h = B("h") a = B("a") f = A("f") j.r = h j.p = h h.p = f h.r = a a.p = j a.r = h f.r = h f.p = h assert a.r.p.r.txt == "h"

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class A: def __init__(self, txt: str): self.r: A = None self.t: B = None self.txt = txt class B: def __init__(self, txt: str): self.v: A = None self.txt = txt a = A("a") j = B("j") g = A("g") e = B("e") d = A("d") h = A("h") a.r = g a.t = e j.v = g g.r = h g.t = e e.v = g d.r = g d.t = j h.r = a h.t = e assert a.r.r.r.r.t.txt == "

e"

class A: def __init__(self, txt: str): self.r: A = None self.t: B = None self.txt = txt class B: def __init__(self, txt: str): self.v: A = None self.txt = txt a = A("a") j = B("j") g = A("g") e = B("e") d = A("d") h = A("h") a.r = g a.t = e j.v = g g.r = h g.t = e e.v = g d.r = g d.t = j h.r = a h.t = e assert a.r.r.r.r.t.txt == "e"

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class A: def __init__(self, txt: str): self.r: B = None self.o: B = None self.txt = txt class B: def __init__(self, txt: str): self.r: A = None self.q: B = None self.txt = txt c = A("c") g = B("g") a = B("a") h = A("h") j = B("j") i = A("i") c.r = j c.o = a g.r = i g.q = a a.r = h a.q = j h.r = g h.o = a j.r = i j.q = g i.r = j i.o = j assert a.q.q.q.txt == "

a"

class A: def __init__(self, txt: str): self.r: B = None self.o: B = None self.txt = txt class B: def __init__(self, txt: str): self.r: A = None self.q: B = None self.txt = txt c = A("c") g = B("g") a = B("a") h = A("h") j = B("j") i = A("i") c.r = j c.o = a g.r = i g.q = a a.r = h a.q = j h.r = g h.o = a j.r = i j.q = g i.r = j i.o = j assert a.q.q.q.txt == "a"

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class A: def __init__(self, txt: str): self.p: A = None self.txt = txt class B: def __init__(self, txt: str): self.s: A = None self.y: B = None self.txt = txt e = A("e") j = B("j") a = A("a") f = B("f") h = B("h") e.p = a j.s = a j.y = f a.p = e f.s = a f.y = h h.s = e h.y = j assert a.p.p.p.txt == "

e"

class A: def __init__(self, txt: str): self.p: A = None self.txt = txt class B: def __init__(self, txt: str): self.s: A = None self.y: B = None self.txt = txt e = A("e") j = B("j") a = A("a") f = B("f") h = B("h") e.p = a j.s = a j.y = f a.p = e f.s = a f.y = h h.s = e h.y = j assert a.p.p.p.txt == "e"

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class A: def __init__(self, txt: str): self.x: B = None self.txt = txt class B: def __init__(self, txt: str): self.q: A = None self.txt = txt d = A("d") b = B("b") c = B("c") h = A("h") i = A("i") d.x = b b.q = d c.q = h h.x = c i.x = c assert c.q.x.q.txt == "

h"

class A: def __init__(self, txt: str): self.x: B = None self.txt = txt class B: def __init__(self, txt: str): self.q: A = None self.txt = txt d = A("d") b = B("b") c = B("c") h = A("h") i = A("i") d.x = b b.q = d c.q = h h.x = c i.x = c assert c.q.x.q.txt == "h"

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class A: def __init__(self, txt: str): self.s: B = None self.u: B = None self.txt = txt class B: def __init__(self, txt: str): self.o: B = None self.v: B = None self.txt = txt b = A("b") j = B("j") h = B("h") c = A("c") b.s = h b.u = h j.o = h j.v = h h.o = j h.v = j c.s = j c.u = h assert c.u.v.o.txt == "

h"

class A: def __init__(self, txt: str): self.s: B = None self.u: B = None self.txt = txt class B: def __init__(self, txt: str): self.o: B = None self.v: B = None self.txt = txt b = A("b") j = B("j") h = B("h") c = A("c") b.s = h b.u = h j.o = h j.v = h h.o = j h.v = j c.s = j c.u = h assert c.u.v.o.txt == "h"

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class A: def __init__(self, txt: str): self.v: B = None self.txt = txt class B: def __init__(self, txt: str): self.t: B = None self.r: B = None self.txt = txt a = A("a") c = B("c") e = B("e") d = A("d") a.v = e c.t = e c.r = e e.t = c e.r = c d.v = e assert e.r.t.r.r.txt == "

e"

class A: def __init__(self, txt: str): self.v: B = None self.txt = txt class B: def __init__(self, txt: str): self.t: B = None self.r: B = None self.txt = txt a = A("a") c = B("c") e = B("e") d = A("d") a.v = e c.t = e c.r = e e.t = c e.r = c d.v = e assert e.r.t.r.r.txt == "e"

e

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class A: def __init__(self, txt: str): self.v: A = None self.s: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.w: A = None self.txt = txt h = A("h") j = B("j") i = A("i") f = A("f") e = B("e") d = B("d") b = B("b") h.v = f h.s = i j.p = f j.w = h i.v = h i.s = h f.v = h f.s = i e.p = h e.w = i d.p = h d.w = f b.p = f b.w = h assert e.w.s.v.v.s.txt == "

i"

class A: def __init__(self, txt: str): self.v: A = None self.s: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.w: A = None self.txt = txt h = A("h") j = B("j") i = A("i") f = A("f") e = B("e") d = B("d") b = B("b") h.v = f h.s = i j.p = f j.w = h i.v = h i.s = h f.v = h f.s = i e.p = h e.w = i d.p = h d.w = f b.p = f b.w = h assert e.w.s.v.v.s.txt == "i"

e

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class A: def __init__(self, txt: str): self.x: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.r: B = None self.txt = txt d = A("d") g = B("g") e = B("e") d.x = g g.p = d g.r = e e.p = d e.r = g assert d.x.p.x.txt == "

g"

class A: def __init__(self, txt: str): self.x: B = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.r: B = None self.txt = txt d = A("d") g = B("g") e = B("e") d.x = g g.p = d g.r = e e.p = d e.r = g assert d.x.p.x.txt == "g"

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class A: def __init__(self, txt: str): self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.txt = txt f = A("f") h = B("h") c = A("c") f.p = h h.x = c c.p = h assert f.p.x.p.txt == "

h"

class A: def __init__(self, txt: str): self.p: B = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.txt = txt f = A("f") h = B("h") c = A("c") f.p = h h.x = c c.p = h assert f.p.x.p.txt == "h"

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class A: def __init__(self, txt: str): self.p: B = None self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.z: A = None self.q: A = None self.txt = txt j = A("j") h = B("h") f = A("f") a = A("a") d = B("d") j.p = d j.r = f h.z = f h.q = f f.p = h f.r = a a.p = d a.r = f d.z = f d.q = a assert d.q.r.p.q.txt == "

f"

class A: def __init__(self, txt: str): self.p: B = None self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.z: A = None self.q: A = None self.txt = txt j = A("j") h = B("h") f = A("f") a = A("a") d = B("d") j.p = d j.r = f h.z = f h.q = f f.p = h f.r = a a.p = d a.r = f d.z = f d.q = a assert d.q.r.p.q.txt == "f"

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class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.t: B = None self.w: B = None self.txt = txt a = A("a") e = B("e") g = B("g") a.w = e e.t = g e.w = g g.t = e g.w = e assert e.w.w.w.txt == "

g"

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.t: B = None self.w: B = None self.txt = txt a = A("a") e = B("e") g = B("g") a.w = e e.t = g e.w = g g.t = e g.w = e assert e.w.w.w.txt == "g"

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class A: def __init__(self, txt: str): self.q: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: A = None self.q: A = None self.txt = txt c = A("c") g = B("g") h = B("h") i = A("i") d = B("d") c.q = h g.z = i g.q = i h.z = c h.q = i i.q = d d.z = c d.q = i assert c.q.z.q.txt == "

h"

class A: def __init__(self, txt: str): self.q: B = None self.txt = txt class B: def __init__(self, txt: str): self.z: A = None self.q: A = None self.txt = txt c = A("c") g = B("g") h = B("h") i = A("i") d = B("d") c.q = h g.z = i g.q = i h.z = c h.q = i i.q = d d.z = c d.q = i assert c.q.z.q.txt == "h"

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class A: def __init__(self, txt: str): self.t: B = None self.z: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: B = None self.r: B = None self.txt = txt a = A("a") g = B("g") b = B("b") c = A("c") d = A("d") a.t = b a.z = c g.p = b g.r = b b.p = g b.r = g c.t = b c.z = a d.t = g d.z = a assert d.t.r.r.p.p.txt == "

g"

class A: def __init__(self, txt: str): self.t: B = None self.z: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: B = None self.r: B = None self.txt = txt a = A("a") g = B("g") b = B("b") c = A("c") d = A("d") a.t = b a.z = c g.p = b g.r = b b.p = g b.r = g c.t = b c.z = a d.t = g d.z = a assert d.t.r.r.p.p.txt == "g"

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class A: def __init__(self, txt: str): self.z: B = None self.v: A = None self.txt = txt class B: def __init__(self, txt: str): self.r: A = None self.s: B = None self.txt = txt b = A("b") g = B("g") d = A("d") h = B("h") b.z = h b.v = d g.r = d g.s = h d.z = g d.v = b h.r = b h.s = g assert g.r.v.z.txt == "

h"

class A: def __init__(self, txt: str): self.z: B = None self.v: A = None self.txt = txt class B: def __init__(self, txt: str): self.r: A = None self.s: B = None self.txt = txt b = A("b") g = B("g") d = A("d") h = B("h") b.z = h b.v = d g.r = d g.s = h d.z = g d.v = b h.r = b h.s = g assert g.r.v.z.txt == "h"

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class A: def __init__(self, txt: str): self.x: A = None self.txt = txt class B: def __init__(self, txt: str): self.o: B = None self.txt = txt i = A("i") f = B("f") h = A("h") c = A("c") a = B("a") g = B("g") i.x = h f.o = a h.x = c c.x = i a.o = f g.o = f assert f.o.o.o.o.o.txt == "

a"

class A: def __init__(self, txt: str): self.x: A = None self.txt = txt class B: def __init__(self, txt: str): self.o: B = None self.txt = txt i = A("i") f = B("f") h = A("h") c = A("c") a = B("a") g = B("g") i.x = h f.o = a h.x = c c.x = i a.o = f g.o = f assert f.o.o.o.o.o.txt == "a"

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class A: def __init__(self, txt: str): self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.z: A = None self.w: A = None self.txt = txt e = A("e") b = B("b") i = A("i") j = B("j") f = B("f") g = B("g") a = B("a") e.o = i b.z = e b.w = i i.o = e j.z = e j.w = e f.z = e f.w = e g.z = e g.w = e a.z = e a.w = i assert b.w.o.o.o.o.o.txt == "

e"

class A: def __init__(self, txt: str): self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.z: A = None self.w: A = None self.txt = txt e = A("e") b = B("b") i = A("i") j = B("j") f = B("f") g = B("g") a = B("a") e.o = i b.z = e b.w = i i.o = e j.z = e j.w = e f.z = e f.w = e g.z = e g.w = e a.z = e a.w = i assert b.w.o.o.o.o.o.txt == "e"

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class A: def __init__(self, txt: str): self.y: B = None self.txt = txt class B: def __init__(self, txt: str): self.w: A = None self.x: A = None self.txt = txt f = A("f") e = B("e") h = A("h") g = B("g") a = A("a") f.y = g e.w = a e.x = f h.y = e g.w = a g.x = a a.y = g assert f.y.w.y.w.y.txt == "

g"

class A: def __init__(self, txt: str): self.y: B = None self.txt = txt class B: def __init__(self, txt: str): self.w: A = None self.x: A = None self.txt = txt f = A("f") e = B("e") h = A("h") g = B("g") a = A("a") f.y = g e.w = a e.x = f h.y = e g.w = a g.x = a a.y = g assert f.y.w.y.w.y.txt == "g"

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class A: def __init__(self, txt: str): self.w: A = None self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.w: A = None self.txt = txt g = A("g") e = B("e") j = A("j") i = B("i") g.w = j g.r = j e.p = j e.w = j j.w = g j.r = g i.p = g i.w = g assert e.p.w.w.txt == "

j"

class A: def __init__(self, txt: str): self.w: A = None self.r: A = None self.txt = txt class B: def __init__(self, txt: str): self.p: A = None self.w: A = None self.txt = txt g = A("g") e = B("e") j = A("j") i = B("i") g.w = j g.r = j e.p = j e.w = j j.w = g j.r = g i.p = g i.w = g assert e.p.w.w.txt == "j"

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class A: def __init__(self, txt: str): self.s: B = None self.w: A = None self.txt = txt class B: def __init__(self, txt: str): self.q: B = None self.y: A = None self.txt = txt f = A("f") c = B("c") d = A("d") j = B("j") b = A("b") f.s = j f.w = d c.q = j c.y = d d.s = j d.w = f j.q = c j.y = f b.s = c b.w = d assert f.w.w.w.txt == "

d"

class A: def __init__(self, txt: str): self.s: B = None self.w: A = None self.txt = txt class B: def __init__(self, txt: str): self.q: B = None self.y: A = None self.txt = txt f = A("f") c = B("c") d = A("d") j = B("j") b = A("b") f.s = j f.w = d c.q = j c.y = d d.s = j d.w = f j.q = c j.y = f b.s = c b.w = d assert f.w.w.w.txt == "d"

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class A: def __init__(self, txt: str): self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.u: A = None self.txt = txt d = A("d") i = B("i") c = A("c") j = B("j") a = A("a") g = A("g") d.o = g i.u = a c.o = d j.u = g a.o = d g.o = d assert i.u.o.o.o.o.txt == "

g"

class A: def __init__(self, txt: str): self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.u: A = None self.txt = txt d = A("d") i = B("i") c = A("c") j = B("j") a = A("a") g = A("g") d.o = g i.u = a c.o = d j.u = g a.o = d g.o = d assert i.u.o.o.o.o.txt == "g"

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class A: def __init__(self, txt: str): self.s: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: B = None self.txt = txt b = A("b") f = B("f") i = A("i") e = B("e") d = B("d") a = A("a") j = A("j") b.s = j f.x = d i.s = j e.x = f d.x = e a.s = j j.s = i assert e.x.x.x.x.x.txt == "

d"

class A: def __init__(self, txt: str): self.s: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: B = None self.txt = txt b = A("b") f = B("f") i = A("i") e = B("e") d = B("d") a = A("a") j = A("j") b.s = j f.x = d i.s = j e.x = f d.x = e a.s = j j.s = i assert e.x.x.x.x.x.txt == "d"

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class A: def __init__(self, txt: str): self.x: A = None self.txt = txt class B: def __init__(self, txt: str): self.o: A = None self.txt = txt j = A("j") d = B("d") e = A("e") j.x = e d.o = e e.x = j assert j.x.x.x.txt == "

e"

class A: def __init__(self, txt: str): self.x: A = None self.txt = txt class B: def __init__(self, txt: str): self.o: A = None self.txt = txt j = A("j") d = B("d") e = A("e") j.x = e d.o = e e.x = j assert j.x.x.x.txt == "e"

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class A: def __init__(self, txt: str): self.t: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.txt = txt g = A("g") b = B("b") i = B("i") c = A("c") e = A("e") j = B("j") g.t = e b.x = g i.x = e c.t = g e.t = g j.x = g assert e.t.t.t.t.t.txt == "

g"

class A: def __init__(self, txt: str): self.t: A = None self.txt = txt class B: def __init__(self, txt: str): self.x: A = None self.txt = txt g = A("g") b = B("b") i = B("i") c = A("c") e = A("e") j = B("j") g.t = e b.x = g i.x = e c.t = g e.t = g j.x = g assert e.t.t.t.t.t.txt == "g"

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class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.v: B = None self.x: A = None self.txt = txt e = A("e") i = B("i") g = B("g") d = B("d") h = B("h") e.w = i i.v = d i.x = e g.v = d g.x = e d.v = g d.x = e h.v = g h.x = e assert e.w.x.w.x.w.txt == "

i"

class A: def __init__(self, txt: str): self.w: B = None self.txt = txt class B: def __init__(self, txt: str): self.v: B = None self.x: A = None self.txt = txt e = A("e") i = B("i") g = B("g") d = B("d") h = B("h") e.w = i i.v = d i.x = e g.v = d g.x = e d.v = g d.x = e h.v = g h.x = e assert e.w.x.w.x.w.txt == "i"

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class A: def __init__(self, txt: str): self.q: A = None self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.v: B = None self.o: A = None self.txt = txt f = A("f") e = B("e") i = A("i") h = B("h") g = A("g") f.q = g f.o = g e.v = h e.o = f i.q = g i.o = g h.v = e h.o = f g.q = i g.o = f assert i.q.q.o.txt == "

g"

class A: def __init__(self, txt: str): self.q: A = None self.o: A = None self.txt = txt class B: def __init__(self, txt: str): self.v: B = None self.o: A = None self.txt = txt f = A("f") e = B("e") i = A("i") h = B("h") g = A("g") f.q = g f.o = g e.v = h e.o = f i.q = g i.o = g h.v = e h.o = f g.q = i g.o = f assert i.q.q.o.txt == "g"

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