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: 6673 aggiunta 6355 sottrazione 4071 sottrazione 5652 aggiunta 5064

SOLUTION: 8369

PROBLEM: 5844 sottrazione 7386 aggiunta 5114

SOLUTION: 3572

PROBLEM: 459 sottrazione 7582 aggiunta 7789

SOLUTION:
666