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: 2894 - 7939 - 355 + 9735 + 3621 + 7661 - 8134 - 9021
A: 
7326