viewimage.php?no=24b0d769e1d32ca73dec81fa11d028314d3faebecfec25ed6aa778bc785ef30eddd73234b0b9cfffcd46278d6cc0814dad68b224570d972972f5031b7fb0d54119b71d42b2c58bbebf9d3e1ea53adc

viewimage.php?no=24b0d769e1d32ca73dec81fa11d028314d3faebecfec25ed6aa778bc785ef30eddd73234b0b9cfffcd46278d6cc0814a28d27cb41a3f833f88ddc766673f68e1f34714090f3f59155cdb9c5ee8f870

이 구멍의 용도를 서술하시오