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

#define rep(i, a, b) for (int i = a; i < b; i++)
using ll = long long;

int main(){
	int n, a, h, m, s;
	cin >> n >> a >> h >> m >> s;
	int d = h * 60 * 60 + m * 60 + s;
	int t = 24 * 60 * 60;
	int r = t - d;
	int x = r - n * a;
	string ans = "No";
	if(x <= 0) ans = "Yes";
	cout << ans << endl;
}