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

int main()
{
double p;
double q;
double P1;
double P2;

	cin >> p;
	cin >> q;

	P1 = ( 1 - p ) * q;
	P2 = p * ( 1 - q ) * q;
	if( P1 < P2 )
		cout << "YES" << endl;
	else
		cout << "NO" << endl;

	return 0;
}