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.

1137 - 2413 - 5470 - 9797 + 2566
16251

8137 + 5006 - 7743 + 1478
9396

2057 - 2330 - 9059 - 2713 - 7404 + 4349

19214