#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;
}