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: 6844 - 1807 - 1809 + 4406 - 1450 - 5252 + 2685
Example Output: 10071

Example Input: 8988 + 9565 + 4047 - 1723 + 7160 - 8838 + 5611 + 7126
Example Output: -13960

Example Input: 508 - 9338 + 3824 - 5067
Example Output:
11089