#include <stdio.h>

void Print(int h, int e)    //打印一行
{
    for (int i = 0; i < h; i++)
    {
        printf(" ");
    }
    printf("*");
    for (int i = 0; i < e - (h+1); i++)
    {
        printf(" ");
    }
    printf("*\n");
}

int main() {
    int n = 0;
    while(scanf("%d", &n) != EOF)
    {
        
        for (int i = 0; i < n/2; i++)	//打印上三角
        {
        Print(i, n-1-i);
        }
        if (n % 2 != 0)
        {
        for (int i = 0; i < n/2; i++)
        {
            printf(" ");
        }
        printf("*\n");
        }
        for (int i = n/2 - 1; i >= 0; i--)	打印下三角
        {
        Print(i, n-1-i);
        }
    }
    return 0;
}