#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<int,int> pint;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
const int INF = 100000000;
const int dx[4]={0,1,0,-1}, dy[4]={-1,0,1,0};
struct P{int x;int y;P(int X=0,int Y=0){x=X;y=Y;}};

int main() {
	double p,q;
	cin >> p >> q;

	double P1=0,P2=0;
	P1 = (1-p) * (q); // 裏→表
	P2 = p * (1-q) * q;

	if(P1 < P2) cout << "YES" << endl;
	else cout << "NO" << endl;

	return 0;
}