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: 4320 aggiunta 6189 sottrazione 6815 aggiunta 8672 sottrazione 3433 aggiunta 8491 aggiunta 7251 aggiunta 1181
Output:
25856