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: 242 - 3824 + 6718 - 4276 + 8975
Example Output: -7351

Example Input: 5270 - 8957 + 6318 - 3390
Example Output: 11299

Example Input: 2202 + 1090 - 2012 - 6423
Example Output:
9547