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]: 2144 - 4158 + 4207
[EX A]: 2095

[EX Q]: 3709 + 206 - 4363 + 3129 + 2506
[EX A]: 2231

[EX Q]: 7272 + 8958 - 7231 + 6616
[EX A]:
-1071