In this task you will be given an arithmetic operation in Italian and you have to find its answer. The operations 'addition' and 'subtraction' have been replaced with their italian translations i.e you need to perform addition when you see 'aggiunta' and subtraction in case of 'sottrazione'.
Q: 4439 aggiunta 9394 aggiunta 183 aggiunta 9862 aggiunta 4534
A: 
28412