C222123232321333131133133313331333132313231322221231212212112111   >>    C22212323232133313113313331333133313231323132222123121221211211   <<    C222123232321333131133133313331333132313231322221231212212112113   >>      C222123232321333131133133313331333132313231322221231212212112112   >>