C2221232323213331311331333133313331323132323131121121221323123131   >>    C222123232321333131133133313331333132313232313112112122132312313   <<    C2221232323213331311331333133313331323132323131121121221323123133   >>      C2221232323213331311331333133313331323132323131121121221323123132   >>