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

int main() {
    long long N,S;
    cin >> N >> S;
    if(N*29 < S) {
        cout << "No" << endl;
    }
    else if(S >= 25) {
        cout << "Yes" << endl;
    }
    else {
        cout << "No" << endl;
    }
}