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

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    vector<pair<ll,ll>> c;
    string ans;
    ll m;
    cin >> m;
    for(ll i = 20000; i >= 1; i--){
        ll c = i * (i + 1) / 2;
        while(m >= c){
            m -= c;
            ans += 'c';
        }
        ans += "on";
    }
    cout << ans << '\n';
}