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.

Example Input: 9910 + 9584 - 6394 - 5927
Example Output: 12647

Example Input: 4242 - 1088 - 4873 + 766 + 1641 + 7003 + 7327 + 5270
Example Output: -11804

Example Input: 2571 + 9288 - 6853
Example Output:
136