發送短信 : On regular and 2-scored 2-orthogonal tournaments.

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