#include <bits/stdc++.h>
using namespace std;
using ll = long long;

#ifdef LOCAL
#include <debug.hpp>
#else
#define debug(...)
#endif

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(20);
    int L, R;
    cin >> L >> R;
    int ans = (L <= 295 && 296 <= R) + (L <= 416 && 417 <= R);
    cout << ans << '\n';
}