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]: 4515 - 2156 - 8427 - 2175
[EX A]: 17273

[EX Q]: 6054 - 4121 + 5615
[EX A]: 4560

[EX Q]: 2541 + 231 - 3028 + 3873 - 754 + 6021
[EX A]:
-3802