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]: 306 + 2346 - 7752 + 7173
[A]: -1461


[Q]: 1922 - 413 - 5668
[A]: 8003


[Q]: 1666 - 7956 - 7911
[A]:
17533