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: 1462 + 1045 - 6631 - 4510 + 2234 + 4084 - 6610 + 2698
Example Output: 9152

Example Input: 8341 + 2746 - 2959 - 9678 + 5173 + 317
Example Output: 12742

Example Input: 945 + 3165 - 7095 - 2799 + 7353 - 3944 - 6188 + 8741
Example Output:
1712