C11112331312111112111133133313331333132212111133133313331333131133133313121231   >>    C1111233131211111211113313331333133313221211113313331333133313113313331312123   <<    C11112331312111112111133133313331333132212111133133313331333131133133313121233   >>      C11112331312111112111133133313331333132212111133133313331333131133133313121232   >>