發送短信 : List decodability of symbol-pair codes

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