#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
void PrintX(int n)
{
    int i = 0, j = 0;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            if (j == i || j == n - 1 - i)
                printf("*");
            else
                printf(" ");
        }
        printf("\n");
    }
}
int main()
{
    int n = 0;
    while (~scanf("%d", &n))
    {
        PrintX(n);
    }
    return 0;
}