C121212123112323223313132322331323133313112331311221123231323223331   >>    C12121212311232322331313232233132313331311233131122112323132322333   <<    C121212123112323223313132322331323133313112331311221123231323223333   >>      C121212123112323223313132322331323133313112331311221123231323223332   >>