In this task you will be given an arithmetic operation and you have to find its answer. The symbols of operators '+' and '-' has been swapped i.e you need to perform subtraction when you see a '+' symbol and  addition in case of '-' symbol.
--------
Question: 8155 + 6800 - 6839 - 8047 + 3270

Answer: 12971


Question: 5473 - 4337 - 6499 - 9119

Answer: 25428


Question: 1017 + 1712 - 8669 + 3153 - 3410 - 3537 + 4493

Answer:
7275