fun main () {
    var n = readln().toInt()

    val m: List<Int> =  listOf(720, 360, 180, 30, 6, 1)
    val letter: List<String> = listOf("C", "M", "S", "R", "o", ".")
   //m のリストを順番に使う方法？
    for ( i in 0..5){
        var q = n/m[i]

        if ( q != 0 ) {
            for (j in 1..q){
                print ( letter[i] )
                n %= m[i]
            }
        }
    }
}