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

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