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: 8243 + 5509 - 2652 - 916 - 1636 + 9824
Example Output: -1886

Example Input: 3438 - 3865 - 956 - 3020 + 2696
Example Output: 8583

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