#include <stdio.h>

int main(void) {
	double p, q, P1, P2;
	scanf("%lf%lf", &p, &q);
	P1 = (1 - p) * q;
	P2 = p * (1 - q) * q;
	//printf("%f %f\n", P1, P2);
	printf("%s\n", (P1 < P2)? "YES" : "NO");

	return 0;
}