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'.

Example Input: 3404 aggiunta 6979 sottrazione 3080 aggiunta 9755
Example Output: 17058

Example Input: 3033 aggiunta 4466 sottrazione 3027 aggiunta 7311
Example Output: 11783

Example Input: 2463 sottrazione 5289 aggiunta 601
Example Output:
-2225