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

Example Input: 8455 + 5516 - 2131 + 6151 + 6314 + 9308 + 5493
Example Output: -22196

Example Input: 9534 + 4836 + 6089 - 5422 + 4937 - 9879 + 9191 - 5742 + 6534
Example Output:
-1010