def main():

    X = int(eval(input()))



    a = X // 200

    print((10 - a))





if __name__ == '__main__':

    main()



# import sys

# input = sys.stdin.readline

# 

# sys.setrecursionlimit(10 ** 7)

# 

# (int(x)-1 for x in input().split())

# rstrip()

#

# def binary_search(*, ok, ng, func):

#     while abs(ok - ng) > 1:

#         mid = (ok + ng) // 2

#         if func(mid):

#             ok = mid

#         else:

#             ng = mid

#     return ok

def main():

    x = int(eval(input()))

    print((10 - x // 200))





if __name__ == '__main__':

    main()

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


if __name__ == "__main__":
    main()
# import sys
# input = sys.stdin.readline
#
# sys.setrecursionlimit(10 ** 7)
#
# (int(x)-1 for x in input().split())
# rstrip()
#
# def binary_search(*, ok, ng, func):
#     while abs(ok - ng) > 1:
#         mid = (ok + ng) // 2
#         if func(mid):
#             ok = mid
#         else:
#             ng = mid
#     return ok

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


if __name__ == "__main__":
    main()

-    X = int(eval(input())) -    a = X // 200 -    print((10 - a)) +    x = int(eval(input())) +    print((10 - x // 200)) -# import sys -# input = sys.stdin.readline -# -# sys.setrecursionlimit(10 ** 7) -# -# (int(x)-1 for x in input().split()) -# rstrip() -# -# def binary_search(*, ok, ng, func): -#     while abs(ok - ng) > 1: -#         mid = (ok + ng) // 2 -#         if func(mid): -#             ok = mid -#         else: -#             ng = mid -#     return ok