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'.
Example: 10 sottrazione 7
Example solution: 3
Example explanation: Here, 'sottrazione' represents the subtraction operation. So, the answer is 3 (10-7=3).

Problem: 9574 sottrazione 9359 sottrazione 8468 aggiunta 8416 aggiunta 8762 sottrazione 4841 aggiunta 2021 sottrazione 3828 aggiunta 8888

Solution: 11165