#include <iostream>
#include <map>
using namespace std;

int main()
{
	int n,a,b,m;
	cin>>a>>b;
	n = 2*a-b/2;
	m = b/2 - a;
	if (b%2==0 && n>=0 && m>=0 && a>0 && a<100 && b>0 && b<100)
		cout<<n<<" "<<m;
	else
		cout<<"No answer";
	return 0;
}