#include <iostream>
#include <string>
#include <cstring>
using namespace std;
int main()
{
    int n;
    cin >> n;
    string str0,str1;
    str0 = "moo";
    str1 = "moo";
    int i = 0;
    while (str1.length() < n)
    {
        i++;
        string temp = "";
        for (int j = 0; j < i + 2; j++)
            temp += "o";
        str1 = str0 + "m" + temp + str0;
        str0 = str1;
    }
    cout << str1[n - 1] << endl;
    return 0;
}