import java.util.Scanner;

public class Main {
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
    	double p = sc.nextDouble();
    	double q = sc.nextDouble();
    	if(q * ( 1 - p) < p *  q * (1- q)) {
    		System.out.println("YES");
    	}
    	else {
    		System.out.println("NO");
    	}
    }
}