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: 4310 + 5678 + 9065 - 8181 + 5925 - 3189 + 558
Example Output: -5546

Example Input: 4682 - 6673 + 4582 - 2631 + 430 - 2808 + 6340 - 7201
Example Output: 12643

Example Input: 1613 - 5413 - 5074 - 3273
Example Output:
15373