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: 3126 - 612 - 9485 - 3358 + 8070
Example Output: 8511

Example Input: 7266 - 5601 + 6292 - 3129 - 4781 - 6736 - 1566 - 7004
Example Output: 29791

Example Input: 1336 - 1080 - 4873 + 2724 - 8322 + 844
Example Output:
12043