#include <iostream>
using namespace std;
int main(){
	int A,B;
	cin >> A >> B;
	if( A > 2*B ){
	cout << "No" << endl;
	}
	else if ( B > 2*A ){
	cout << "No" << endl;
		
	}
	else{
	cout << "Yes" << endl;
	}
}