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: 9143 aggiunta 6610 sottrazione 7902 sottrazione 4685 sottrazione 4845 sottrazione 7648 aggiunta 1298 sottrazione 7803 sottrazione 6710

Solution: -22542