x = int(input())
if 1800 <= x and x <= 1999:
    print(1)
elif 1600 <= x and x <= 1799:
    print(2)
elif 1400 <= x and x <= 1599:
    print(3)
elif 1200 <= x and x <= 1399:
    print(4)
elif 1000 <= x and x <= 1199:
    print(5)
elif 800 <= x and x <= 999:
    print(6)
elif 600 <= x and x <= 799:
    print(7)
else:
    print(8)
