// No.2775 Nuisance Balls
package main

import (
	"fmt"
)

func main() {

	var n int
	fmt.Scan(&n)

	var ans string
	x := n
	for {
		switch {
		case x >= 720:
			ans += "C"
			x -= 720
		case x >= 360:
			ans += "M"
			x -= 360
		case x >= 180:
			ans += "S"
			x -= 180
		case x >= 30:
			ans += "R"
			x -= 30
		case x >= 6:
			ans += "o"
			x -= 6
		case x >= 1:
			ans += "."
			x -= 1
		}
		if x <= 0 {
			break
		}
	}
	fmt.Println(ans)
}