C222123232321333131133133313331333132313231333133322331223231111121212121   >>    C22212323232133313113313331333133313231323133313332233122323111112121212   <<    C222123232321333131133133313331333132313231333133322331223231111121212123   >>      C222123232321333131133133313331333132313231333133322331223231111121212122   >>