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.

6054 - 4121 + 5615
4560

3071 - 5299 + 206 + 3214 + 6040 + 5785 - 6760 - 8070
7955

7555 + 8285 + 7132 + 9363 - 3515

-13710