C222123232321333131133133313331323133313233311232313233232112213223121   >>    C22212323232133313113313331333132313331323331123231323323211221322312   <<    C222123232321333131133133313331323133313233311232313233232112213223123   >>      C222123232321333131133133313331323133313233311232313233232112213223122   >>