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