C31232233133313221211113313331333133313331212111112111133313223313221231   >>    C3123223313331322121111331333133313331333121211111211113331322331322123   <<    C31232233133313221211113313331333133313331212111112111133313223313221233   >>      C31232233133313221211113313331333133313331212111112111133313223313221232   >>