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: 7442 + 227 + 52 + 2436 - 3303 + 8408 + 4314

Output: -4692


Input: Consider Input: 1788 + 4847 - 9342 - 2397

Output: 8680


Input: Consider Input: 9591 - 4537 + 3843 - 9424 - 282 - 3602 + 3597


Output: 19996