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

int main() {
    int n;
    cin >> n;
    vector<int> num = {720, 360, 180, 30, 6, 1};
    vector<char> ch = {'C', 'M', 'S', 'R', 'o', '.'};
    string ans = "";
    for (int i = 0; i < 6; i++) {
        int q = n / num[i];
        for (int j = 0; j < q; j++) {
            ans += ch[i];
        }
        n %= num[i];
    }
    cout << ans << endl;
}