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: 2097 aggiunta 4739 aggiunta 8027 sottrazione 8167 sottrazione 1468 sottrazione 6527
A: 
-1299