C31232233133313221211113313331333133313331212111112111133122221   >>    C3123223313331322121111331333133313331333121211111211113312222   <<    C31232233133313221211113313331333133313331212111112111133122223   >>      C31232233133313221211113313331333133313331212111112111133122222   >>