#include <stdio.h>

int main()
{
    int n;
    while(scanf("%d", &n) != -1)
    {
        for (int i = 1; i < n + 1; i++)
        {
            for (int j = 1; j < n + 1; j++)
            {
                if(j == i || j == n + 1 - i)
                {
                    printf("*");
                }
                else
                {
                    printf(" ");
                }
            }
            printf("\n");
        }
    }
    return 0;
}