//problem no a
    #include <stdio.h>

    int main()
    {
      int row, c, n, s;


      scanf("%d", &n);

      s = n;

      for (row = 1; row <= n; row++)
      {
        for (c = 1; c < s; c++)
          printf(" ");

        s--;

        for (c = 1; c <= 2*row - 1; c++)
          printf("*");

        printf("\n");
      }

      return 0;
    }