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: 8576 - 8960 - 1317 + 5701 + 5413 - 1195 + 135

Output: 8799


Input: Consider Input: 6485 + 8165 + 4482 - 4771 + 2626 + 5500 + 8702 - 1649 + 7002

Output: -23572


Input: Consider Input: 8701 - 761 - 6371 - 9462 + 2060 + 3255 + 3049 - 8977 - 2162


Output: 28070