C2221232323213331311331333133313231333132313331333233113222213311223321   >>    C222123232321333131133133313331323133313231333133323311322221331122332   <<    C2221232323213331311331333133313231333132313331333233113222213311223323   >>      C2221232323213331311331333133313231333132313331333233113222213311223322   >>