C221212321333132313223313223313132313132313231323131133132313311212121   >>    C22121232133313231322331322331313231313231323132313113313231331121212   <<    C221212321333132313223313223313132313132313231323131133132313311212123   >>      C221212321333132313223313223313132313132313231323131133132313311212122   >>