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: 5783 sottrazione 173 aggiunta 8068 aggiunta 4911 aggiunta 835 aggiunta 1206 sottrazione 2654 sottrazione 3349 sottrazione 5333
A:
9294