C31232132313132313123231323132313331313232233132322131133132333132322221231   >>    C3123213231313231312323132313231333131323223313232213113313233313232222123   <<    C31232132313132313123231323132313331313232233132322131133132333132322221233   >>      C31232132313132313123231323132313331313232233132322131133132333132322221232   >>