C31231211111133131211113313331333133312111133133313331333131133133313223331221   >>    C3123121111113313121111331333133313331211113313331333133313113313331322333122   <<    C31231211111133131211113313331333133312111133133313331333131133133313223331223   >>      C31231211111133131211113313331333133312111133133313331333131133133313223331222   >>