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: 5661 + 5694 + 8212 - 8431 - 6340 + 4336 + 2022 - 5623
Example Output: 5791

Example Input: 4810 - 7988 + 5646 + 8226 + 5009 - 1013 + 7246 - 4319 - 1934
Example Output: -6063

Example Input: 4477 + 3954 + 11 + 1347 - 5481 + 2126 - 8221 + 771 + 2866
Example Output:
7104