C111112111133131121133133313331333132213331333131133131323323222321   >>    C11111211113313112113313331333133313221333133313113313132332322232   <<    C111112111133131121133133313331333132213331333131133131323323222323   >>      C111112111133131121133133313331333132213331333131133131323323222322   >>