發送短信 : Converting pseudocode into Python functions (greedy techniques)

 _    _    _    _     _____      ___     __   __  
| || | || | || | ||  / ____||   / _ \\   \ \\/ // 
| || | || | || | || / //---`'  | / \ ||   \   //  
| \\_/ || | \\_/ || \ \\___    | \_/ ||   / . \\  
 \____//   \____//   \_____||   \___//   /_//\_\\ 
  `---`     `---`     `----`    `---`    `-`  --`