#include <iostream>
using namespace std;
int main(){
    int n,m,num;
    cin>>n>>m;
    num=n;
    n*=4;
    if(m>n||(n-m)%2==1||((n-m)/2)>num){
        cout<<"No answer"<<endl;
        return 0;
    }
    m=(n-m)/2;
    cout<<m<<" "<<num-m<<endl;
    return 0;
}