#include<bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using mint=modint998244353; //1000000007;
using ll=long long;
using pp=pair<int,int>;
#define sr string 
#define vc vector
#define fi first
#define se second
#define rep(i,n) for(int i=0;i<(int)n;i++)
#define pb push_back
#define all(v) v.begin(),v.end()
#define pque priority_queue
#define bpc(a) __builtin_popcount(a)
int main(){
	ll m;cin>>m;
	sr ans="c";
	for(ll i=0;i<40;i++){
		if(i<14){
			if(i)rep(j,1<<(i-1))ans.pb('c');
			ans.pb('o');
			if(m>>i&1)ans.pb('n');
		}
		if(i>=14&&i<27){
			rep(j,1<<(i-14))ans.pb('o');
			if(m>>i&1)ans.pb('n');
		}
		if(i>=27){
			if(m>>i&1)rep(j,1<<(i-27))ans.pb('n');
		}
	}
	cout<<ans;
}