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: 4286 + 2085 - 8347

Output: 10548


Input: Consider Input: 2226 - 7329 - 3547

Output: 13102


Input: Consider Input: 2226 + 9414 + 3832


Output: -11020