C121212123112323223313132322331323331323331322331323233231311311   >>    C12121212311232322331313232233132333132333132233132323323131131   <<    C121212123112323223313132322331323331323331322331323233231311313   >>      C121212123112323223313132322331323331323331322331323233231311312   >>