#include <stdio.h>
int main()
{
    int n = 0;
    while(scanf("%d",&n)!= EOF)
    {
    for(int i = 0; i < n;i++)
    {
        for(int j = 0; j < n; j++)
        {
        if(i == j||i + j == n-1)
            printf("*");

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