#include <stdio.h>

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