C2221232323213331311331333133313331323132323131121122333131232211   >>    C222123232321333131133133313331333132313232313112112233313123221   <<    C2221232323213331311331333133313331323132323131121122333131232213   >>      C2221232323213331311331333133313331323132323131121122333131232212   >>