C121212123112323223313132322331323133313233313232233132313113311   >>    C12121212311232322331313232233132313331323331323223313231311331   <<    C121212123112323223313132322331323133313233313232233132313113313   >>      C121212123112323223313132322331323133313233313232233132313113312   >>