def main():
    N = int(input())

    d = {"C":720, "M":360, "S":180, "R":30, "o":6, ".":1}

    ans = ""

    for k in d:
        tmp = N//d[k]
        N -= tmp*d[k]
        ans += k*tmp

    print(ans)


if __name__ == "__main__":
    main()