C222123232321333131133133313331333132313231322221231212233131121   >>    C22212323232133313113313331333133313231323132222123121223313112   <<    C222123232321333131133133313331333132313231322221231212233131123   >>      C222123232321333131133133313331333132313231322221231212233131122   >>