#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 1000000000000000001


int main(){
	
	string s = ".oRSMC";
	vector<int> t = {6,5,6,2,2};
	int N;
	cin>>N;
	string ans = "";
	rep(i,s.size()-1){
		rep(j,N%t[i]){
			ans += s[i];
		}
		N /= t[i];
	}
	rep(i,N)ans += s.back();
	reverse(ans.begin(),ans.end());
	cout<<ans<<endl;
	return 0;
}