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: 1344 + 7632 - 4322
Example Output: -1966

Example Input: 5905 + 5109 - 5861 - 9787 + 386 + 9628 - 3644 - 5345 + 7068
Example Output:
8351