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: 1411 sottrazione 8122 aggiunta 3525 aggiunta 6464 aggiunta 1508 aggiunta 6126
A: 
10912