Contribute correction: Gestione conto corrente

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