C111123313121111121111331333133313331333133313331333133313331312323231111   >>    C11112331312111112111133133313331333133313331333133313331333131232323111   <<    C111123313121111121111331333133313331333133313331333133313331312323231113   >>      C111123313121111121111331333133313331333133313331333133313331312323231112   >>