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: 9715 sottrazione 9911 sottrazione 824

A: -1020
****
Q: 3055 sottrazione 6506 aggiunta 7787

A: 4336
****
Q: 7774 sottrazione 6432 sottrazione 8613 aggiunta 8528

A:
1257
****