C31232132313132313123231323132313331313232233132322131133132333132322223311   >>    C3123213231313231312323132313231333131323223313232213113313233313232222331   <<    C31232132313132313123231323132313331313232233132322131133132333132322223313   >>      C31232132313132313123231323132313331313232233132322131133132333132322223312   >>