#include <stdio.h>
/*
Written By : Ahmad Jawed ZAFAR
Date : 10/07/2008
Program : Sand Watch
*/

int main()
{
   int i, j, k, l, hight;

   printf("Enter The Hight\n");
   while (hight!=0)
   {
          scanf("%d", &hight);

               for (i=1; i<=hight; i++)
               {
               for (j=0; j<i-1; j++)
               
               printf(" ");

               for (j=0; j<2*hight-2*i-1; j++)
               printf("*");
               printf("\n");
       
               }

               for (k=1; k<hight; k++)
               {
                   for (l=1; l<hight-k; l++)
                   printf(" ");
                   
                   for (l=0; l<2*k-1; l++)
                   printf("*");
               
               printf("\n");
               }
               } 

      system("PAUSE");
      return 0;
}