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

int main(){
		double p,q;
		cin >> p >> q;
		
		double P1 = (1-p) * 1.0 * q;
		double P2 = p * (1-q) * 1.0 * q;
		if( P1 < P2 ){
			cout << "YES" << endl;
		}else{
			cout << "NO" << endl;
		}
		
}