C222123232321333131133133313331333132313232313112112223331212121   >>    C22212323232133313113313331333133313231323231311211222333121212   <<    C222123232321333131133133313331333132313232313112112223331212123   >>      C222123232321333131133133313331333132313232313112112223331212122   >>