#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, s, e) for (int i = (int)(s); i < (int)(e); ++i)
#define all(a) (a).begin(),(a).end()

int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    
    int N;
    cin >> N;
    
    vector<int> num = {720, 360, 180, 30, 6, 1};
    vector<char> c = {'C', 'M', 'S', 'R', 'o', '.'};
    
    rep(i, 0, 6) {
        int times = N / num[i];
        rep(j, 0, times) cout << c[i];
        N %= num[i];
    }
    
    cout << '\n';
}