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: 8611 aggiunta 4793 sottrazione 5816 sottrazione 7853 aggiunta 9718

SOLUTION: 9453

PROBLEM: 6244 aggiunta 2024 sottrazione 2131

SOLUTION: 6137

PROBLEM: 5169 aggiunta 8999 aggiunta 7279

SOLUTION:
21447