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: 5774 + 1888 + 5355 - 6957 - 7140 - 9762

Output: 22390


Input: Consider Input: 2047 + 909 + 5121 - 353 - 6908 + 2891 + 362 - 8961 - 1832


Output: 10818