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: 9085 + 2845 - 6159 + 1404 + 2110 - 8797
Example Output: 17682

Example Input: 8098 + 8922 - 9716 + 5360
Example Output: 3532

Example Input: 4954 - 4033 + 1949 - 5543 + 9382 + 5754 - 9097 + 1735
Example Output:
4807