#include <iostream>
#include <bits/stdc++.h>
using namespace std;
int main(void){
    int a, b;
    cin >> a >> b;
    if ( a > b) {
        if (a / b > 2) {
            cout << "No" << endl;
        } else {
            cout << "Yes" << endl;
        }
    } else {
        if (b / a > 2) {
            cout << "No" << endl;
        } else {
            cout << "Yes" << endl;
        }
    }
    
}