#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main(){
    ll m;
    cin >> m;
    for(ll i = 20000; i >= 1; i--){
        ll c = i * (i + 1) / 2;
        while(m >= c){m -= c; cout << 'c';}
        cout << "on";
    }
    cout << '\n';
}