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: 7529 aggiunta 4272 sottrazione 6115 sottrazione 8568 sottrazione 5741
A: 
-8623