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viewimage.php?id=20bcc42ee0df39b267bcc5&no=24b0d769e1d32ca73cef8ffa11d02831424b310c0eeaa8669b91e5ace0ad459d655a540c541e538fa983dad1531d99868386db2b2b152d1214109df68d9a490e78de2acfd3f80608894253ac2c36fcd75da4c764aad4ade8f2228a172beb6e5a85c2c3a61a

첫댓 말대로 윗것+아랫것+1한 다음 (mod10)하면 됨