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: 8874 - 7346 - 993 + 4161 - 8239 - 5471 + 5866 + 1152
A: 
19744