#include<bits/stdc++.h>
using namespace std;
long long n;
string s1,s2;
void f(int g,string a){
	if(g==1){
		cout<<a[n-1];
		return;
	}
	s1=a+'m'+s2+a;
	s2+="o";
	f(g-1,s1);
}
int main(){
	cin>>n;
	long long first=3,g=1,second=4;
	while(first<n){
		first+=(first+second);
		second++;
		g++;
		if(first>=n)break;
		
	}
	s2="ooo";
    f(g,"moo");
}