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: 8243 + 5509 - 2652 - 916 - 1636 + 9824
Example Output: -1886

Example Input: 7240 - 3294 - 2859 + 1798 + 9958 - 6797
Example Output: 8434

Example Input: 9099 - 9304 + 5786 - 2194 + 6101
Example Output:
8710