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: 1314 aggiunta 3785 sottrazione 4072 aggiunta 3843 sottrazione 7897 aggiunta 46
Output:
-2981