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: 10 sottrazione 7
Example solution: 3
Example explanation: Here, 'sottrazione' represents the subtraction operation. So, the answer is 3 (10-7=3).

Problem: 2372 sottrazione 6127 sottrazione 3106 aggiunta 907 aggiunta 334 aggiunta 1588 aggiunta 3743 aggiunta 4826 sottrazione 212

Solution: 4325