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: 6043 aggiunta 2492 aggiunta 3435

A: 11970
****
Q: 867 aggiunta 9436 sottrazione 975 sottrazione 1099 sottrazione 4586

A: 3643
****
Q: 7290 aggiunta 4809 aggiunta 8971

A:
21070
****