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: 9634 sottrazione 8649 sottrazione 6322 sottrazione 746 sottrazione 2863 sottrazione 141 sottrazione 6773 sottrazione 10000
Output:
-25860