Detailed Instructions: 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: 8505 sottrazione 5928 aggiunta 1859 aggiunta 9659 aggiunta 4959 aggiunta 7817 aggiunta 3846 aggiunta 786
A:
31503