#include <iostream>
using namespace std;

int main() {
	int n;
    cin >> n;
    for(int i=n;i>=1;i-=2){
    	for(int j=1;j<=i-1;j+=2){
    		cout << " ";
    	}for (int k=i;k<=n;k++){
    		cout << "o";
    }
    cout << "\n";
    }
	return 0;
}