#include <stdio.h>

int main() {
    int num = 0;
    while (scanf("%d",&num) != EOF) 
    {
        for (int i = 0; i< num + 1; i++)
        {
            for (int j = 0; j < num * 2 - (i*2); j++)
            {
                printf(" ");
            }

            for (int k = 0; k <= i; k++)
            {
                printf("*");
            }

            printf("\n");
        }

        for (int i = 0; i < num; i++)
        {
            for (int j = 0 ; j < (i+1) * 2; j++)
            {
                printf(" ");
            }

            for (int k = 0; k < num - i; k++)
            {
                printf("*");
            }

            printf("\n");
        }
    }
    return 0;
}