أرسل هذا في رسالة قصيرة: Computing and combinatorics : 7th annual international conference, COCOON 2001, Guilin, China, August 20-23, 2001 : proceedings

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