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: 242 - 3824 + 6718 - 4276 + 8975
Example Output: -7351

Example Input: 5473 - 4337 - 6499 - 9119
Example Output: 25428

Example Input: 4726 + 5358 - 801 - 3562 + 2191 - 7870 + 214
Example Output:
9196