C121212123112323223313132322331323331323331322331323113313231333132311   >>    C12121212311232322331313232233132333132333132233132311331323133313231   <<    C121212123112323223313132322331323331323331322331323113313231333132313   >>      C121212123112323223313132322331323331323331322331323113313231333132312   >>