C31232132313132313123231323132313331313232233132322131133132333132322333121   >>    C3123213231313231312323132313231333131323223313232213113313233313232233312   <<    C31232132313132313123231323132313331313232233132322131133132333132322333123   >>      C31232132313132313123231323132313331313232233132322131133132333132322333122   >>