C31232233133313221211113313331333133313331212111112111113333131211   >>    C3123223313331322121111331333133313331333121211111211111333313121   <<    C31232233133313221211113313331333133313331212111112111113333131213   >>      C31232233133313221211113313331333133313331212111112111113333131212   >>