أرسل هذا في رسالة قصيرة: The Set Chromatic Numbers of the Middle and Total Graphs of a Graph

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