C222123232321333131133133313331333132313231322221231212132331121   >>    C22212323232133313113313331333133313231323132222123121213233112   <<    C222123232321333131133133313331333132313231322221231212132331123   >>      C222123232321333131133133313331333132313231322221231212132331122   >>