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: 2305 aggiunta 5122 aggiunta 4447 aggiunta 3585 sottrazione 9984 sottrazione 1192 sottrazione 4999 sottrazione 2644
Output:
-3360