#include <iostream>
#include <vector>
#include <set>
#include <string>
#include <algorithm>

using namespace std;


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