#include <cstdio>
#include <iostream>
#include <cmath>

using namespace std;

int n;
int cnt, cnt_abs;
int main()
{
    scanf("%d", &n);
    cnt = n/2+1;
    for(int i = 1; i <= n; ++i)
    {
        cnt_abs = abs(cnt-i);           //打印每行的空格用，用绝对值，考虑到下半部分和上半部分是对称的
        for(int j = 1; j <= cnt_abs; ++j)
        {
            cout<<" ";
        }
        for(int k = cnt_abs+1; k <= n-cnt_abs; ++k)     //同样是对称的结构
        {
            cout<<"*";
        }
        cout<<endl;
    }
    return 0;
}