#include<iostream>
using namespace std;
int main()
{
	int a,b;
	scanf("%d %d",&a,&b);
	int c=b-2*a;
	if(b<=4*a&&b>=2*a&&b%2==0)
		printf("%d %d",a-(c/2),c/2);
	else
		puts("No answer");
}