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: 4633 aggiunta 7165 aggiunta 9307 aggiunta 5765 sottrazione 4432 sottrazione 8008 sottrazione 6713 aggiunta 9796 aggiunta 6708
A:
24221