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.

[EX Q]: 42 + 6517 - 146 + 304 - 4759 + 148 - 3822
[EX A]: 1800

[EX Q]: 6163 + 7356 + 5264 - 4766 + 9373 + 1271
[EX A]: -12335

[EX Q]: 515 - 9947 + 89 - 9558 + 741 - 3759 + 2935
[EX A]:
20014