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: 355 sottrazione 4636 aggiunta 8525 aggiunta 6173 aggiunta 8059 aggiunta 7256 aggiunta 9441 aggiunta 6604 sottrazione 6093
A:
35684