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: 2229 aggiunta 6769 sottrazione 4475 aggiunta 8935 aggiunta 5884
A: 
19342