發送短信 : On Completely k-Magic Regular Graphs

 _    _      ___     ______      ___     _    _   
| |  | ||   / _ \\  |      \\   / _ \\  | |  | || 
| |/\| ||  | / \ || |  --  //  / //\ \\ | |/\| || 
|  /\  ||  | \_/ || |  --  \\ |  ___  |||  /\  || 
|_// \_||   \___//  |______// |_||  |_|||_// \_|| 
`-`   `-`   `---`   `------`  `-`   `-` `-`   `-`