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: 3672 + 2445 + 4715 - 5145 - 8515 + 3793 - 3753
Example Output: 10132

Example Input: 9350 + 2320 + 5626 - 4349
Example Output: 5753

Example Input: 5778 - 5516 - 1453 + 7326 - 5703
Example Output:
11124