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: 1805 aggiunta 1444 aggiunta 4193 sottrazione 2911 aggiunta 4682 aggiunta 6438
A: 
15651