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: 520 sottrazione 7669 sottrazione 3224 sottrazione 3684 sottrazione 758 sottrazione 851 aggiunta 2689 aggiunta 7693 sottrazione 5506

Solution: -10790