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: 796 aggiunta 4347 aggiunta 7521 aggiunta 9418 sottrazione 1830 sottrazione 5203 aggiunta 8636 sottrazione 5025 sottrazione 4676
A:
13984