Contribute correction: Tens and units

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