C11112331312111112111133133313331333133313123313331311331333132321133131111   >>    C1111233131211111211113313331333133313331312331333131133133313232113313111   <<    C11112331312111112111133133313331333133313123313331311331333132321133131113   >>      C11112331312111112111133133313331333133313123313331311331333132321133131112   >>