#include <stdio.h>
int main() {
    int n,i,j;
    while(~scanf("%d",&n))
    {
        for(i=1;i<=2*n+1;i++)
        {
            for(j=1;j<=n+1;j++)
            {
                {
                    if(j+i<=n+2||j<=i-n) printf("* ");
                    else printf(" ");
                }
            }printf("\n");
        }
    }
    return 0;
}