發送短信 : One result of the cyclic inequality

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