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: 8098 + 8922 - 9716 + 5360

Output: 3532


Input: Consider Input: 3089 - 6778 - 3604 - 1052 - 1332

Output: 15855


Input: Consider Input: 8141 - 5101 + 416


Output: 12826