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: 1799 - 6428 + 9525 - 4524 + 9186
Example Output: -5960

Example Input: 6492 - 3901 + 3666 + 9196 - 3917 - 133
Example Output: 1581

Example Input: 7617 - 2247 + 1576 + 7048 + 2100
Example Output:
-860