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: 2371 aggiunta 7973 sottrazione 1637 aggiunta 4995 sottrazione 742

SOLUTION: 12960

PROBLEM: 5844 sottrazione 7386 aggiunta 5114

SOLUTION: 3572

PROBLEM: 6899 aggiunta 5705 aggiunta 2292 sottrazione 7779

SOLUTION:
7117