C11112331312111112111133133313331333133313331333133313331333131133211112111   >>    C1111233131211111211113313331333133313331333133313331333133313113321111211   <<    C11112331312111112111133133313331333133313331333133313331333131133211112113   >>      C11112331312111112111133133313331333133313331333133313331333131133211112112   >>