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: 1953 - 3854 - 1362 + 6267 - 3664 - 901 + 7969 + 111
Example Output: -2613

Example Input: 5342 - 6456 - 9929 + 3119 - 1242 + 314
Example Output: 19536

Example Input: 4922 - 7164 - 4106 - 7797 + 5728 + 2770 + 1883 - 4270
Example Output:
17878