Contribute correction: Esercizi in BASIC

           __   __    ______     ___    
    ___    \ \\/ //  /_   _//   / _ \\  
   /   ||   \ ` //     | ||    / //\ \\ 
  | [] ||    | ||     _| ||   |  ___  ||
   \__ ||    |_||    /__//    |_||  |_||
    -|_||    `-`'    `--`     `-`   `-` 
     `-`