#include <bits/stdc++.h>
using namespace std;
void star(int x, int y, int n){
if((x/n)%3==1 && (y/n)%3==1) cout <<' ';
else {
if(n/3==0) cout << '*';
else {
star(x,y,n/3);
}
}
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
for(int i=0; i<n; i++) {
for(int j=0; j<n; j++) {
star(i,j,n);
}
cout << '\n';
}
return 0;
}
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