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

using ll = long long;
#define rep(i, n) for(int i = 0; i < n; i++)

int main() {
	int N;
	cin >> N;
	using P = pair<char, int>;
	vector<P> p{{'C', 720}, {'M', 360}, {'S', 180}, {'R', 30}, {'o', 6}, {'.', 1}};
	int sz = p.size();
	string ans;
	rep(i, sz) {
		char c = p[i].first;
		int n = p[i].second;
		int d = N / n;
		ans += string(d, c);
		N -= d * n;
	}
	cout << ans << endl;
}