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: 3284 - 2372 - 6880

Output: 12536


Input: Consider Input: 8098 + 8922 - 9716 + 5360

Output: 3532


Input: Consider Input: 4653 - 7261 - 9717 - 3013 - 9461 + 7431 - 4277 - 5419


Output: 36370