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: 6040 + 5815 + 9288 + 5107 + 5697 + 7993 - 672 + 8297
Example Output: -35485

Example Input: 220 - 5891 + 2603 + 7125 - 7551 - 3288
Example Output: 7222

Example Input: 364 - 216 - 4072 - 1397 - 3936
Example Output:
9985