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: 879 aggiunta 8353 aggiunta 5182 sottrazione 2050 sottrazione 4722 sottrazione 3317 aggiunta 9889
Output:
14214