Contribute correction: DISK Strategy II

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