C31231211111133131211113313331333133112111133132322121133132211   >>    C3123121111113313121111331333133313311211113313232212113313221   <<    C31231211111133131211113313331333133112111133132322121133132213   >>      C31231211111133131211113313331333133112111133132322121133132212   >>