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: 4397 aggiunta 7429 aggiunta 7000 sottrazione 5758 aggiunta 2417 sottrazione 6822 sottrazione 8733 sottrazione 9112
A:
-9182