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'.

8377 aggiunta 4819 sottrazione 7308 aggiunta 7133 sottrazione 8557
4464