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: 4095 - 9640 - 5113 - 9355
Example Output: 28203

Example Input: 1137 - 2413 - 5470 - 9797 + 2566
Example Output: 16251

Example Input: 6902 + 4269 - 6452 + 7075 - 9486
Example Output:
11496