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: 3055 - 3062 - 5311
Example Output: 11428

Example Input: 2591 - 5867 - 9565
Example Output: 18023

Example Input: 5254 - 3146 - 2356 - 3956 + 2381 - 1264
Example Output:
13595

