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

using ll = long long;
using llu = long long unsigned;

// メイン関数
int main() {
    int a, b;
    cin >> a >> b;
    if ((2*a > b) || (2*b > a)) {
        cout << "No" << endl;
    } else {
        cout << "Yes" << endl;
    }
    return 0;
}