C111112111133131121133133313331333132213331333131133132313222121   >>    C11111211113313112113313331333133313221333133313113313231322212   <<    C111112111133131121133133313331333132213331333131133132313222123   >>      C111112111133131121133133313331333132213331333131133132313222122   >>