find the value of 1 / ( 3 + 1 / ( 3 + 1 / ( 3 - 1 / 3 ) ) )
n0 = 1.0
n1 = 3.0
n2 = 1.0
n3 = 3.0
n4 = 1.0
n5 = 3.0
n6 = 1.0
n7 = 3.0
t0 = n0 / n1
t1 = n1 - t0
t2 = n0 / t1
t3 = n1 + t2
t4 = n0 / t3
t5 = n1 + t4
answer = n0 / t5
print(answer)