"Python 簡易解
'for 迴圈
https://github.com/WECI1/ZeroJudge/blob/5c6559c9e94d50953a4592df6a91dae1a27679b3/a004%20for%E8%BF%B4%E5%9C%88.py
'while 迴圈
https://github.com/WECI1/ZeroJudge/blob/5c6559c9e94d50953a4592df6a91dae1a27679b3/a004%20while%E8%BF%B4%E5%9C%88.py