C1212122313132322331323323132313331323331313132313113313233313232212323111   >>    C121212231313232233132332313231333132333131313231311331323331323221232311   <<    C1212122313132322331323323132313331323331313132313113313233313232212323113   >>      C1212122313132322331323323132313331323331313132313113313233313232212323112   >>