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: 5986 + 9293 + 3288 - 1791 + 6613 + 8185 - 7053
Example Output: -12549

Example Input: 4274 - 4385 - 2316 - 7783
Example Output: 18758

Example Input: 4993 - 9334 - 5415 + 8531 - 5640 + 896 + 3114 - 1984
Example Output:
14825