Contribute correction: BASIC Cursus MSX

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