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: 6075 aggiunta 3654 aggiunta 9389 aggiunta 5420 sottrazione 3232 sottrazione 8649
A: 
12657