#include <bits/stdc++.h>

using namespace std;

int main() {
    double p, q;
    cin >> p >> q;

    //double p1 = (1 - p) * q, p2 = p * (1 - q) * q;
    //p2-p1=q(2p-pq-1);
    cout << (((2 - q) * p - 1 > 0) ? "YES" : "NO") << endl;
    return 0;
}