C2221232323213331311331333133313331323132313331333223312232332222132321   >>    C222123232321333131133133313331333132313231333133322331223233222213232   <<    C2221232323213331311331333133313331323132313331333223312232332222132323   >>      C2221232323213331311331333133313331323132313331333223312232332222132322   >>