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.

Input: Consider Input: 5630 - 3377 + 9205 - 4071 + 9580 - 7049

Output: 1342


Input: Consider Input: 7525 + 263 - 1634 + 3644 + 6905 - 167

Output: -1486


Input: Consider Input: 6732 + 5690 - 2448 + 1752 + 7805 - 1629 - 9280


Output: 4842