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: 1231 aggiunta 6182 aggiunta 6854 aggiunta 2051 aggiunta 2599
A: 
18917