#include <stdio.h>
#include<math.h>
 int main()
 { 
     int n,i,j;
     scanf("%d\n", &n);
     if(n%2==0 || n<=0 || n>10 )
     {
         printf("Invalid Input");
         return 0;
     }
     for (i=n;i>0;i-=2)
     {
         for(j=0;j<(n-1)/2;j++)
         {
             printf(" ");
         }
         for(j=0;j<i;j++);
         {
              printf("*");
         }
         printf("\n")
     }
     return 0;
     }