TASK DEFINITION: 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'.
PROBLEM: 2431 sottrazione 4910 aggiunta 3990

SOLUTION: 1511

PROBLEM: 9284 sottrazione 3064 aggiunta 3418 aggiunta 2802

SOLUTION: 12440

PROBLEM: 6864 aggiunta 8279 aggiunta 2054 aggiunta 2127 sottrazione 2989 sottrazione 3799

SOLUTION:
12536