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]: 9096 - 7913 + 7375 + 7790
[EX A]: 1844

[EX Q]: 7889 + 2057 + 4830 + 7278 - 476 - 1209
[EX A]:
-4591