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: 6929 sottrazione 4125 aggiunta 7338 sottrazione 5689 aggiunta 4564
A: 
9017