import java.util.Scanner;

public class No159 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double p, q;
        p = sc.nextDouble();
        q = sc.nextDouble();

        if((1-p) * q < p *(1-q) * q){
            System.out.println("YES");
        }else{
            System.out.println("NO");
        }
    }
}