import sys

input = lambda: sys.stdin.readline().rstrip()



def main():

    x = int(eval(input()))

    if 400 <= x and x <=599:

        print((8))

    elif 600 <= x and x <= 799:

        print((7))

    elif 800 <= x and x <= 999:

        print((6))

    elif 1000 <= x and x <= 1199:

        print((5))

    elif 1200 <= x and x <= 1399:

        print((4))

    elif 1400 <= x and x <= 1599:

        print((3))

    elif 1600 <= x and x <= 1799:

        print((2))

    elif 1800 <= x and x <= 1999:

        print((1))

            

if __name__ == '__main__':

    main()
import sys

input = lambda: sys.stdin.readline().rstrip()



def main():

    print((10 - int(eval(input())) // 200))

                    

if __name__ == '__main__':

    main()
import sys

input = lambda: sys.stdin.readline().rstrip()


def main():
    x = int(eval(input()))
    if 400 <= x and x <= 599:
        print((8))
    elif 600 <= x and x <= 799:
        print((7))
    elif 800 <= x and x <= 999:
        print((6))
    elif 1000 <= x and x <= 1199:
        print((5))
    elif 1200 <= x and x <= 1399:
        print((4))
    elif 1400 <= x and x <= 1599:
        print((3))
    elif 1600 <= x and x <= 1799:
        print((2))
    elif 1800 <= x and x <= 1999:
        print((1))


if __name__ == "__main__":
    main()

import sys

input = lambda: sys.stdin.readline().rstrip()


def main():
    print((10 - int(eval(input())) // 200))


if __name__ == "__main__":
    main()

-    x = int(eval(input())) -    if 400 <= x and x <= 599: -        print((8)) -    elif 600 <= x and x <= 799: -        print((7)) -    elif 800 <= x and x <= 999: -        print((6)) -    elif 1000 <= x and x <= 1199: -        print((5)) -    elif 1200 <= x and x <= 1399: -        print((4)) -    elif 1400 <= x and x <= 1599: -        print((3)) -    elif 1600 <= x and x <= 1799: -        print((2)) -    elif 1800 <= x and x <= 1999: -        print((1)) +    print((10 - int(eval(input())) // 200))