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: 5979 - 9772 + 7332

Output: 8419


Input: Consider Input: 7169 + 1918 - 7501 + 5160 + 9033 - 3341 + 4286

Output: -2386


Input: Consider Input: 6026 - 6132 + 3584


Output: 8574