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: 4284 - 8233 + 2781 - 2769 - 5560 + 635 - 1706 + 1965 + 6794
Example Output: 10377

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

Example Input: 113 - 6449 - 8061 - 5583 + 4951 + 2656
Example Output:
12599