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: 5820 aggiunta 9363 sottrazione 4346 sottrazione 7429 sottrazione 1277 sottrazione 4397 sottrazione 9306
Output:
-11572