C1111233131211111211113313331333133313331333133313331333133313223313112111211   >>    C111123313121111121111331333133313331333133313331333133313331322331311211121   <<    C1111233131211111211113313331333133313331333133313331333133313223313112111213   >>      C1111233131211111211113313331333133313331333133313331333133313223313112111212   >>