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


signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
#ifndef ONLINE_JUDGE
	freopen("input.txt","r",stdin);
	freopen("output.txt","w",stdout);
#endif
	int n,s; cin>>n>>s;
	int ans=n/s;
	if(ans>=25 and ans<=30){
		cout<<"Yes\n";
	}else{
		cout<<"No\n";
	}
	return 0;
}