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

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, a, h, m, s;
    cin >> n >> a >> h >> m >> s;
    s += m * 60 + h * 3600;
    cout << (86400 - s <= n * a ? "Yes" : "No") << '\n';
}