39b2db3fea8068f43ef284e54487746bbef1d53eb303975c81c0840fa70e14707c00174d6bd4213ced50e50e0690500a1ad454

39b2db3fea8068f43ef284e54487746bbef0d53cb107935b89c0840fa60e1470ecae4c4adde1bc98f6af86c2d9648641fe153f

원리가 뭐야