#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, m;
    cin >> n >> m;
    ll p = n * 60 + m;
    if (p <= 7 * 60 + 30) cout << "Yes\n";
    else if (p > 7 * 60 + 30 && p <= 8 * 60 + 30) cout << "Late\n";
    else cout << "No\n";
    return 0;
}