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: 9842 + 5573 - 5322 - 4612 + 489 - 1030 + 6611 + 2045 + 9627
Example Output: -3539

Example Input: 42 + 6517 - 146 + 304 - 4759 + 148 - 3822
Example Output: 1800

Example Input: 8096 - 5065 - 4257 + 1171 + 4079 - 5767
Example Output:
17935