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: 1834 - 2630 + 3119 - 3024 - 1805 + 5287 + 9826
Example Output: -8939

Example Input: 9118 + 5545 - 3160 + 3672 - 3568 + 5997 + 205 + 7095
Example Output: -6668

Example Input: 9576 + 3608 - 6553 - 6217 + 7774 - 8918
Example Output:
19882