C121212123112323223313132322331323331323331322331323221323131231111   >>    C12121212311232322331313232233132333132333132233132322132313123111   <<    C121212123112323223313132322331323331323331322331323221323131231113   >>      C121212123112323223313132322331323331323331322331323221323131231112   >>