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'.

2694 sottrazione 9395 sottrazione 8184 sottrazione 372 sottrazione 873 sottrazione 2457 sottrazione 2904
-21491