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'.
Q: 9677 sottrazione 3985 sottrazione 7117 aggiunta 3538 sottrazione 7303 sottrazione 2974 sottrazione 6893 sottrazione 6602 aggiunta 3860
A: 
-17799