import java.util.*;
public class forcedUSB{
	public static void main(String... args){
		Scanner scan = new Scanner(System.in);
		double p = scan.nextInt();
		double q = scan.nextInt();
		double p1 = (1-p)*q;
		double p2 = p*(1-q)*q;
		System.out.println((p1<p2)?"YES":"NO");
	}
}