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: 1861 - 3929 + 4952 - 8280
Example Output: 9118

Example Input: 86 - 2166 - 8519 - 7184 - 362 - 2203 + 1579 - 1133 + 3978
Example Output: 16096

Example Input: 5633 + 7513 - 1560 - 6186 + 40 + 1739 + 3043
Example Output:
1044