Contribute correction: Beginner's Lesson

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