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: 6047 sottrazione 9427 aggiunta 3822 aggiunta 2850 sottrazione 626 aggiunta 5041 aggiunta 8163 sottrazione 2526 sottrazione 8017
A:
5327