# 自作ライブラリ
# https://github.com/takumi-okamoto/competitive-programming-public/tree/main/mylib

import sys


# sys.setrecursionlimit(10**8)


def debug(*args):
    print(*args, file=sys.stderr)


def main():
    l, r = map(int, input().split())
    ans = 0
    if l <= 295 and r >= 296:
        ans += 1
    if l <= 416 and r >= 417:
        ans += 1

    print(ans)


if __name__ == "__main__":
    main()