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: 5837 sottrazione 4750 aggiunta 888 aggiunta 3899 sottrazione 935 sottrazione 5605 sottrazione 1632 sottrazione 987 sottrazione 5707

Solution: -8992