using System;

class Program
{
    static void Main()
    {
        int N = int.Parse(Console.ReadLine());
        var symbols = new (string symbol, int value)[]
        {
            ("C", 720),
            ("S", 180),
            ("R", 30),
            ("o", 6),
            (".", 1)
        };

        var result = "";
        foreach (var (symbol, value) in symbols)
        {
            int count = N / value;
            N %= value;
            result += new string(symbol[0], count);
        }

        Console.WriteLine(result);
    }
}