C121212123112323223313132322331323331323331322331323113313231323231311   >>    C12121212311232322331313232233132333132333132233132311331323132323131   <<    C121212123112323223313132322331323331323331322331323113313231323231313   >>      C121212123112323223313132322331323331323331322331323113313231323231312   >>