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.

5299 - 8791 + 6861
7229

7099 + 7754 - 6005 + 852 - 2187 + 4606 - 6703
8782

4303 + 4581 + 3027 - 9269 + 3325

2639