> #include <stdio.h>
> #include <stdlib.h>
> #include <string.h>
> int main(int argc,char *argv[])
> {
> 	int z;
> 	scanf("%d",&z);
> 	while(z--)
> 	{
> 		int x,y;
> 		scanf("%d%d",&x,&y);
> 		if(x-y==0||x-y==2)
> 			printf("%d\n",x*2-x%2-x+y);
> 		else
> 			printf("No Number\n");
> 	}
> 	return (0);
> }