#include <iostream>
using namespace std;
using i64 = long long;

int main(){
    i64 N; cin >> N;
    i64 S; cin >> S;
    bool ans = true;
    if(S < 25) ans = false;
    if(N*29 < S) ans = false;
    cout << (ans ? "Yes" : "No") << "\n";
    return 0;
}