C111112111133131121133133313331333131333132322331333132313311221   >>    C11111211113313112113313331333133313133313232233133313231331122   <<    C111112111133131121133133313331333131333132322331333132313311223   >>      C111112111133131121133133313331333131333132322331333132313311222   >>