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'.

Example input: 10 sottrazione 7
Example output: 3
Example explanation: Here, 'sottrazione' represents the subtraction operation. So, the answer is 3 (10-7=3).
Q: 4774 aggiunta 9132 sottrazione 6115 sottrazione 6193 aggiunta 2817 sottrazione 869 aggiunta 1580 sottrazione 8302
A:
-3176