#include <bits/stdc++.h>
using namespace std;
int main() {
    int n;
    cin >> n;
    vector<int> a = {720,360,180,30,6,1};
    vector<char> c = {'C','M','S','R','o','.'};
    for(int i = 0;i < 6;i++){
        for(int j = 0;j < n / a[i];j++){
            cout << c[i];
        }
        n = n % a[i];
    }
    cout << endl;
    return 0;
}