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: 9824 + 9255 - 8146 - 8393 - 6949 - 3238 + 2641 - 4068 + 4633
Example Output: 24089

Example Input: 2909 + 1799 - 984 + 4910 + 3253 - 6846 - 8324 - 9048
Example Output: 18149

Example Input: 7580 - 2944 + 8676 - 29 + 4744 - 4966 + 8503 - 5634 - 8575
Example Output:
7805