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: 1562 + 8343 + 8480
Example Output: -15261

Example Input: 7451 + 2964 + 1609 - 9543 - 679 + 381 - 9788 - 8125
Example Output: 30632

Example Input: 5379 + 7115 + 1201 + 3573 - 9284 - 7798
Example Output:
10572