n = int(input())

ans = ""

while n >= 720:
  n -= 720
  ans += "C"
while n >= 360:
  n -= 360
  ans += "M"
while n >= 180:
  n -= 180
  ans += "S"
while n >= 30:
  n -= 30
  ans += "R"
while n >= 6:
  n -= 6
  ans += "o"
for i in range(n):
  ans += "."

print(ans)