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: 5457 aggiunta 4028 aggiunta 3810 aggiunta 3625 aggiunta 8835 sottrazione 7554 aggiunta 6404 sottrazione 9182 aggiunta 6632
A:
22055