/* -*- coding: utf-8 -*-
 *
 * 1799.cc:  No.1799 Summer Day - yukicoder
 */

#include<cstdio>
#include<algorithm>
 
using namespace std;

/* constant */

/* typedef */

typedef long long ll;

/* global variables */

/* subroutines */

/* main */

int main() {
  int n, s;
  scanf("%d%d", &n, &s);

  if (s >= 25 && s <= n * 29LL) puts("Yes");
  else puts("No");
  return 0;
}