#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef string str;
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    ll n, a, h, m, s;
    cin >> n >> a >> h >> m >> s;
    ll sum = h * 3600 + m * 60 + s + n * a;
    if (sum < 24 * 3600) cout << "No\n";
    else cout << "Yes\n";
    return 0;
}