#include<bits/stdc++.h>
#define pt printf(">>>")
#define mid (((l)+(r))/2)
using namespace std;
typedef long long ll;
typedef long double ld;
const ll N=1e6+10,inf=1e18+10,mod=1e9+7;
int main(){
	ll a,b;
	cin >> a >> b;
	cout << (a<=b*2&&b<=a*2?"Yes":"No");
	return 0;
}