#include <bits/stdc++.h>
//#include <atcoder/modint>

using namespace std;
//using namespace atcoder;
using ll = long long;
//using mint = modint998244353;

int main(){
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);

    int L, R, ans=0;
    cin >> L >> R;
    if (L <= 295 && 296 <= R) ans++;
    if (L <= 416 && 417 <= R) ans++;
    cout << ans << endl;

    return 0;
}