n = int(input())
s = ""
s += "C"*(n//720)
n %= 720
s += "M"*(n//360)
n %= 360
s += "S"*(n//180)
n %= 180
s += "R"*(n//30)
n %= 30
s += "o"*(n//6)
n %= 6
s += "."*(n)

print(s)