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: 2303 + 151 - 7031 + 7349 - 8676 + 9084 + 9773
Example Output: -8347

Example Input: 1626 + 448 + 6034
Example Output: -4856

Example Input: 3624 + 8316 - 4658 + 7363 - 4165 + 3125 - 6896
Example Output:
539