Instructions: 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'.
Input: 7805 sottrazione 3995 aggiunta 3586 sottrazione 5749 aggiunta 7814 aggiunta 3938 sottrazione 4533
Output:
8866