C121212123112323223313132322331323331323331322331323132313123231311   >>    C12121212311232322331313232233132333132333132233132313231312323131   <<    C121212123112323223313132322331323331323331322331323132313123231313   >>      C121212123112323223313132322331323331323331322331323132313123231312   >>