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: 9815 sottrazione 7750 aggiunta 3284 sottrazione 9801 sottrazione 5546

SOLUTION: -9998

PROBLEM: 4986 aggiunta 8653 sottrazione 9809

SOLUTION: 3830

PROBLEM: 9209 aggiunta 6757 aggiunta 1857 sottrazione 9580

SOLUTION:
8243