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: 9858 aggiunta 4630 aggiunta 208 aggiunta 9802 sottrazione 3989

SOLUTION: 20509

PROBLEM: 6460 sottrazione 7494 aggiunta 3688 aggiunta 4875 sottrazione 6472 aggiunta 3659

SOLUTION: 4716

PROBLEM: 2101 aggiunta 1163 sottrazione 4185

SOLUTION:
-921

