#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, s, e) for (int i = (int)(s); i < (int)(e); ++i)
#define all(a) (a).begin(),(a).end()

int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    
    int L, R;
    cin >> L >> R;
    
    int ans = 0;
    if (L <= 295 && 296 <= R) ++ans;
    if (L <= 416 && 417 <= R) ++ans;
    cout << ans << '\n';
}