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: 9656 sottrazione 9271 sottrazione 2657 sottrazione 7489 aggiunta 6471 aggiunta 6722 aggiunta 9757 aggiunta 5190 sottrazione 5357
A: 
13022