#include <bits/stdc++.h>

using namespace std;

typedef pair<int, int> pii;
typedef long long ll;
const int N = 2000086, MOD = 998244353, INF = 0x3f3f3f3f;
ll res;
int n, m, cnt, w[N];


int din[N];

int main() {
    int l, r;
    cin >> l >> r;
    printf("%d\n", (l <= 295 && r > 295) + (l <= 416 && r > 416));
    return 0;
}