C121212123112323223313132322331323331323331322331323131123312331   >>    C12121212311232322331313232233132333132333132233132313112331233   <<    C121212123112323223313132322331323331323331322331323131123312333   >>      C121212123112323223313132322331323331323331322331323131123312332   >>