//沙漏

#include<bits/stdc++.h>

using namespace std;

int main(){
    int n;
    cin >>n;

    int mid = (n - 1) / 2;

    for (int i = 0; i < n; i++)
    {
        int a,b;

        if (i <= mid)
        {
            a = i;
            b = n - 2 *i;
        }else
        {
            int j = 2 * mid - i;
            a = j;
            b = n -2 *j;
        }

        for (int j = 0; j < a; j++)
        {
            cout <<" ";
        }
        for (int y = 0; y < b; y++)
        {
            cout <<"*";
        }
        cout <<endl;
    }
    
    return 0;
}