#include <iostream>
using namespace std;
main() {
int n ;
cin >> n;
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= i; j++) {
cout << "o" ;
}
for (int k = 1; k <=0; k++) {
cout << "o";
}
cout << "\n";
}
}
/*
o
ooo
ooooo
ooooooo
ooooooooo
*/
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