#include <cstdio>
#include <cstdlib>

using namespace std;

int const maxn=110;
int n,m;
int ji,tu;

int main()
{
	scanf("%d %d",&n,&m);
	ji=2*n-m/2;
	tu=m/2-n;
	if(ji+tu==n&&ji*2+tu*4==m&&ji>=0&&tu>=0)printf("%d %d\n",ji,tu);
	else printf("No answer\n");
}