發送短信 : Fast sequential and parallel vertex relabelings of K<inf>m,m</inf>

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