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: 9824 + 9255 - 8146 - 8393 - 6949 - 3238 + 2641 - 4068 + 4633

Output: 24089


Input: Consider Input: 1256 - 3248 - 3709 - 3019

Output: 11232


Input: Consider Input: 8158 - 4264 - 9989 - 5583 - 5746 - 5403


Output: 39143