#include <algorithm>
#include <cmath>
#include <iostream>
#include <numeric>
#include <queue>
#include <vector>
using namespace std;
using ll = long long;
#define rep(i, j, n) for (int i = j; i < (n); ++i)


int main() {
  cin.tie(0)->sync_with_stdio(0);
  ll n, s;
  cin >> n >> s;
  ll lower = 25, upper = n * 29;
  cout << (lower <= s && s <= upper ? "Yes" : "No");
  return 0;
}