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'.
Q: 2607 sottrazione 7833 sottrazione 2134 aggiunta 2913 aggiunta 3791 aggiunta 4459 sottrazione 5428 sottrazione 266 sottrazione 1458
A: 
-3349