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.

2653 + 9718 - 3237 + 2973 - 6895 - 18
112

6603 - 3783 + 3030 - 5787 + 8478 + 3046 - 1629
3248

1256 - 7610 - 9862

18728