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: 6726 aggiunta 8972 aggiunta 5682 sottrazione 54 aggiunta 3445 sottrazione 7147
A: 
17624