C11112331312111112111133133313331333133313123313331333131232331221121   >>    C1111233131211111211113313331333133313331312331333133313123233122112   <<    C11112331312111112111133133313331333133313123313331333131232331221123   >>      C11112331312111112111133133313331333133313123313331333131232331221122   >>