Detailed Instructions: 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'.
See one example below:
Problem: 10 sottrazione 7
Solution: 3
Explanation: Here, 'sottrazione' represents the subtraction operation. So, the answer is 3 (10-7=3).

Problem: 9656 sottrazione 3991 aggiunta 6633 aggiunta 4965 sottrazione 7878
Solution:
9385