#include<stdio.h>
int main() {
	int A, B;
	scanf("%d %d", &A, &B);
	if(A + 1 <= B) {
		printf("YES\n");
	} else {
		printf("NO\n");
	}
	if(A + 1 >= B) {
		printf("%d\n", (A + 1) - B);
	} else {
		printf("%d\n", B - (A + 1));
	}
	return (0);
}