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: 1589 + 4479 - 6111 - 3158 - 7662
Example Output: 14041

Example Input: 1078 + 2128 + 513 + 5898 - 8020
Example Output: 559

Example Input: 9605 - 3090 + 8125 + 5081 + 1705 + 6096 + 6431 - 232 + 4031
Example Output:
-18542