import sys



h, a = list(map(int, sys.stdin.readline().split()))



def main():

    return (h + a - 1) // a



if __name__ == '__main__':

    ans = main()

    print(ans)
import sys



h, a = list(map(int, sys.stdin.readline().split()))



def main():

    print(((h + a - 1) // a))



if __name__ ==  '__main__':

    main()
import sys

h, a = list(map(int, sys.stdin.readline().split()))


def main():
    return (h + a - 1) // a


if __name__ == "__main__":
    ans = main()
    print(ans)

import sys

h, a = list(map(int, sys.stdin.readline().split()))


def main():
    print(((h + a - 1) // a))


if __name__ == "__main__":
    main()

-    return (h + a - 1) // a +    print(((h + a - 1) // a)) -    ans = main() -    print(ans) +    main()