a = int(eval(input()))

b = int(a//200)

if b == 2:

  print((8))

elif b == 3:

  print((7))

elif b== 4:

  print((6))

elif b== 5:

  print((5))

elif b==6:

  print((4))

elif b==7:

  print((3))

elif b==8:

  print((2))

elif b==9:

  print((1))

  

 
a=int(eval(input()))

b=a//200

if b==2:

  print((8))

elif b==3:

  print((7))

elif b==4:

  print((6))

elif b==5:

  print((5))

elif b==6:

  print((4))

elif b==7:

  print((3))

elif b==8:

  print((2))

elif b==9:

  print((1))
a = int(eval(input()))
b = int(a // 200)
if b == 2:
    print((8))
elif b == 3:
    print((7))
elif b == 4:
    print((6))
elif b == 5:
    print((5))
elif b == 6:
    print((4))
elif b == 7:
    print((3))
elif b == 8:
    print((2))
elif b == 9:
    print((1))

a = int(eval(input()))
b = a // 200
if b == 2:
    print((8))
elif b == 3:
    print((7))
elif b == 4:
    print((6))
elif b == 5:
    print((5))
elif b == 6:
    print((4))
elif b == 7:
    print((3))
elif b == 8:
    print((2))
elif b == 9:
    print((1))

-b = int(a // 200) +b = a // 200