#include <bits/stdc++.h>
using namespace std;
//#include <atcoder/segtree>
//using namespace atcoder;
#define ll long long
#define ld long double
#define yes cout << "Yes"
#define no cout << "No"
#define INF 1LL << 60
#define minusINF -1LL << 60
//#define INF 1e18
//const ll mod = 1000000007;
const ll mod = 998244353;

void solve() {

}

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

    ll L, R;
    cin >> L >> R;
    ll ans = 0;
    if (L <= 295 && 295 < R) ans++;
    if (L <= 416 && 416 < R) ans++;
    cout << ans;

    cout << "\n";
    return 0;
}