from heapq import heappop, heappush, heapify from bisect import bisect #from sortedcontainers import SortedList from collections import deque, defaultdict from math import floor, ceil, isqrt, comb from sys import stdin, setrecursionlimit #setrecursionlimit(10**7) intin = lambda: int(stdin.readline()) strin = lambda: stdin.readline().rstrip() listin = lambda: list(map(int, stdin.readline().split())) tuplein = lambda m: [tuple(map(lambda x: int(x) if x.isdigit() or (len(x) > 1 and x[0] == "-" and x[1:].isdigit()) else x, stdin.readline().split())) for _ in range(m)] gridin = lambda m: [list(map(int, stdin.readline().split())) for _ in range(m)] strgridin = lambda h: [stdin.readline().rstrip() for _ in range(h)] mapin = lambda: map(int, stdin.readline().split()) L, R = mapin() ans = 0 if L <= 295 <= 296 <= R: ans += 1 if L <= 416 <= 417 <= R: ans += 1 print(ans)