https://github.com/s2angji/Daegu_AI_School/blob/main/6%EC%9B%94/1%EC%A3%BC%EC%B0%A8/0602/%EC%8B%A4%EC%8A%B5/01_ex.py
https://github.com/s2angji/Daegu_AI_School/blob/main/6%EC%9B%94/1%EC%A3%BC%EC%B0%A8/0602/%EC%8B%A4%EC%8A%B5/02_ex.py
https://github.com/s2angji/Daegu_AI_School/blob/main/6%EC%9B%94/1%EC%A3%BC%EC%B0%A8/0602/%EC%8B%A4%EC%8A%B5/03_ex.py