#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
int main()
{
 int line = 0;
 printf("");
 scanf("%d", &line);
 int i = 0;
 for (i = 0; i < line; i++)  
 {
  int j = 0;
  for (j = 0; j < line - 1 - i; j++) 
  {
   printf(" ");
  }
  for (j = 0; j < 2 * i + 1; j++) 
  {
   printf("*");
  }
  printf("\n");
 }
 for (i = 0; i < line - 1; i++) 
 {
  int j = 0;
  for (j = 0; j <= i; j++)
  {
   printf(" ");
  }
  for (j = 0; j < 2 * (line - 1 - i) - 1; j++)
  {
   printf("*");
  }
  printf("\n");
 }
        system("pause");
 return 0;
}