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: 2330 sottrazione 674 sottrazione 2117 aggiunta 4275 aggiunta 4209 sottrazione 6374 aggiunta 9559 aggiunta 8919 aggiunta 8637
A: 
28764