#include<stdio.h>
int main(){
	int m,n,a,b;
	double x,y;
	scanf("%d%d",&n,&m);
	b=(m-2*n)/2;
	a=(4*n-m)/2;
	x=(m-2*n)/2%1;
	y=(4*n-m)/2%1;
	if(a<0||b<0||x>0||y>0||x<0||y<0){
	printf("No answer");}
	else
	printf("%d %d",a,b);
	return 0;
}