好简单，真轻松~[]~(￣▽￣)~*

#include<iostream>
using namespace std;
int main(){
int x,y;
cin>>x>>y;
if(y%2!=0)cout<<"No";
else if(x2>y)cout<<"No";
else if(x4<y)cout<<"No";
else cout<<"Yes";
return 0;
}