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: 1685 sottrazione 2334 sottrazione 8409 sottrazione 911 aggiunta 9469 aggiunta 7054 sottrazione 2577 aggiunta 9178 aggiunta 5647
A: 
18802