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

#include using namespace std;

int main() { long long x, y; cin >> x >> y; if(y%2==0 && y>=2x && y<=4x) cout << "Yes"; else cout << "No"; return 0; }