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: 5279 - 2949 - 9227 - 4200 - 3399 - 5680 - 9769 + 7051 + 2369

Output: 31083


Input: Consider Input: 8338 + 7035 - 2067 - 1210 + 9433 + 1604

Output: -6457


Input: Consider Input: 1723 + 4909 - 2093 - 2508 + 8799 + 6433


Output: -13817