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: 8779 aggiunta 7133 aggiunta 5080 sottrazione 137 aggiunta 400 aggiunta 8993 aggiunta 3160
A: 
33408