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: 2342 + 4498 - 5816 + 2604 - 6155 - 2683 - 1893 - 2482
Example Output: 14269

Example Input: 8053 - 8275 + 3672 - 7233 + 8748 - 1270 - 6997 - 7566 + 5689
Example Output: 21285

Example Input: 2619 - 3339 + 5903
Example Output:
55