#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using Graph = vector<vector<int>>;
long long GCD(long long a,long long b) {
  if(a%b == 0) return b;
  return GCD(b,a%b);
}
int main() {
  long long N,S; cin >> N >> S;
  
  long long x = (S + 29 - 1) / 29;
  
  if(x <= N && S >= 25ll) {
    cout << "Yes" << endl;
  }else {
    cout << "No" << endl;
  }
}