> #include"stdio.h"
> #include"math.h"
> main()
> {
> 	int i,j,n,ii,jj,k;
> 	while(scanf("%d",&n)&&n--!=-1)
> 	{
> 		for(i=0;i<pow(3,n);i++,printf("\n"))
> 			for(j=0;j<pow(3,n);j++)
> 			{
> 				for(ii=i,jj=j,k=0;k<n&&(ii%3+jj%3)%2==0;ii/=3,jj/=3,k++);
> 				printf("%c",32+56*(k==n));
> 			}
> 		printf("-\n");
> 	} 
> }