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: 3384 - 2434 - 5567
Example Output: 11385

Example Input: 240 - 438 + 497 - 5901 - 1960 + 4782 + 6400 - 4055
Example Output: 915

Example Input: 1320 + 3923 - 1080 - 3521 - 8998 + 4479 - 2559 - 7680
Example Output:
16756