Instructions: 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'.
Input: 2276 aggiunta 7441 aggiunta 8673 sottrazione 2051 aggiunta 1629 sottrazione 4466
Output:
13502