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.
Q: 5606 - 9775 + 6581 + 287 + 2936 - 8113 - 7688
A: 
21378