C111112111133131121133133313331333131333132322331323221333131321   >>    C11111211113313112113313331333133313133313232233132322133313132   <<    C111112111133131121133133313331333131333132322331323221333131323   >>      C111112111133131121133133313331333131333132322331323221333131322   >>