#include <bits/stdc++.h>
using namespace std;

int main() {
	int n, m, x, y;
	cin >> n >> m;
	if (m % n != 0) {
		x = m % n;
		y = m / n + 1;
	} else {
		x = n;
		y = m / n;
	}
	if (x == y) {
		cout << "yes" << " ";
	} else {
		cout << "no" << " ";
	}
	if (y == n - (x - 1)) {
		cout << "yes" << " ";
	} else {
		cout << "no" << " ";
	}

	return 0;
}