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]: 509 + 4840 + 5618 + 9163 + 802
[EX A]: -19914

[EX Q]: 2036 + 7313 - 8908 - 1870 - 5159 + 5945 + 5006 + 635 + 5551
[EX A]: -6477

[EX Q]: 905 + 4687 - 1699 - 236 + 6639 - 477
[EX A]:
-8009