#include <iostream>
#include <cstring>
#include <algorithm>
using namespace std;
int main()
{
    int n;
    scanf("%d", &n);
    int k = n / 2, x = 1;
    for (int i = 1; i <= n / 2 + 1; i ++) {
        for (int j = 1; j <= k; j ++) printf(" ");
        for (int j = 1; j <= x; j ++) printf("*");
        cout<<endl;
        k --, x += 2;
    }
    k ++, x -= 2;
    for (int i = 1; i <= n / 2; i ++) {
        k ++, x -= 2;
        for (int j = 1; j <= k; j ++) printf(" ");
        for (int j = 1; j <= x; j ++) printf("*");
        cout<<endl;
    }
    return 0;
}