發送短信 : AED placement optimisation

 _    _      ___     _    _    _    _      _____  
| || | ||   / _ \\  | |  | || | || | ||   / ___// 
| || | ||  / //\ \\ | |/\| || | || | ||   \___ \\ 
| \\_/ || |  ___  |||  /\  || | \\_/ ||   /    // 
 \____//  |_||  |_|||_// \_||  \____//   /____//  
  `---`   `-`   `-` `-`   `-`   `---`   `-----`