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.

[Q]: 146 - 5209 + 892
[A]: 4463


[Q]: 2510 - 5839 + 9950 + 740
[A]: -2341


[Q]: 4466 - 6971 + 7683 + 2862
[A]:
892