C2221232323213331311331333133313231333132313331333322123221231323231   >>    C222123232321333131133133313331323133313231333133332212322123132323   <<    C2221232323213331311331333133313231333132313331333322123221231323233   >>      C2221232323213331311331333133313231333132313331333322123221231323232   >>