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'.
One example is below.
Q: 10 sottrazione 7
A: 3
Rationale: Here, 'sottrazione' represents the subtraction operation. So, the answer is 3 (10-7=3).
Q: 1540 aggiunta 9423 aggiunta 8565 sottrazione 255 sottrazione 9425 sottrazione 6898 aggiunta 8182 aggiunta 3357
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
14489