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.

1123 - 8657 + 3476 - 5278 + 717 - 1557 + 6614 + 1549
4259

3672 + 2445 + 4715 - 5145 - 8515 + 3793 - 3753
10132

2761 + 1842 + 6310 - 4098

-1293