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: 1459 aggiunta 870 aggiunta 3131 aggiunta 4599 sottrazione 2599 sottrazione 9837 aggiunta 9511 aggiunta 3209
A: 
10343