C11112331312111112111133133313331333133313123313331333131322123331   >>    C1111233131211111211113313331333133313331312331333133313132212333   <<    C11112331312111112111133133313331333133313123313331333131322123333   >>      C11112331312111112111133133313331333133313123313331333131322123332   >>