坤兔同笼

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll j,t;
ll x,y;
int main()
{
	cin>>x>>y;
	t = (y-2*x)/2;
	j = x-t;
	if(t<0 || j<0)
	{
		cout<<"No";
		return 0;
	}
	if(j*2+t*4==y) cout<<"Yes";
	else cout<<"No";
	return 0;
}