C31232233133313221211113313331333133313331212111112111133121111112232213231   >>    C3123223313331322121111331333133313331333121211111211113312111111223221323   <<    C31232233133313221211113313331333133313331212111112111133121111112232213233   >>      C31232233133313221211113313331333133313331212111112111133121111112232213232   >>