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.

5773 - 2989 + 8993 + 6702 + 2237 - 1402 - 4236 - 1857
-1675

2537 - 3199 + 5925 + 8172 + 3564 + 8810
-20735

7237 + 2873 + 9057

-4693