發送短信 : SUBSET SELECTION USING BRANCH AND BOUND FORREGRESSION

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