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: 6691 sottrazione 6229 sottrazione 8555 aggiunta 5237 sottrazione 2339 sottrazione 228 sottrazione 3732 aggiunta 7532 sottrazione 8048
A: 
-9671