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: 5328 + 9563 + 7711
Example Output: -11946

Example Input: 7147 + 1234 - 7159 + 8304 - 934 + 3025 - 796 - 5291 - 2549
Example Output: 11313

Example Input: 7932 - 4603 - 5585 + 8998
Example Output:
9122