#include <cstdio>
#include <cmath>
using namespace std;
int main(){
int n;
scanf("%d", &n);
int cnt = n / 2;
for (int i = 0; i < n; i++){
int space = abs(cnt);
int stars = n - abs(cnt) * 2;
while (space --) printf(" ");
while (stars --) printf("*");
printf("\n");
cnt --;
}
}