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.

Example Input: 7442 + 227 + 52 + 2436 - 3303 + 8408 + 4314
Example Output: -4692

Example Input: 1311 + 7420 + 9121 + 7525 - 8582 + 528 + 1094
Example Output: -15795

Example Input: 8416 + 2345 - 6177
Example Output:
12248