You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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'.

10 sottrazione 7
Solution: 3
Why? Here, 'sottrazione' represents the subtraction operation. So, the answer is 3 (10-7=3).

New input: 2130 sottrazione 8233 aggiunta 3566 sottrazione 5543 aggiunta 5163
Solution:
-2917