Definition: 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: 7565 sottrazione 7201 aggiunta 7698 aggiunta 763 sottrazione 5228 sottrazione 8934 sottrazione 6762 aggiunta 2967
Output:
-9132