import java.util.Scanner;

class main{
    public static void main(String args[]){
	Scanner scan = new Scanner(System.in);

	double p = scan.nextDouble();
	double q = scan.nextDouble();

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

    }
}