發送短信 : How well can you know the edge of a quantum pyramid?

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