C1212122313132322331323323132313331323331313132313113313233313221121   >>    C121212231313232233132332313231333132333131313231311331323331322112   <<    C1212122313132322331323323132313331323331313132313113313233313221123   >>      C1212122313132322331323323132313331323331313132313113313233313221122   >>