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: 5806 - 3876 - 963 + 1876 - 3233 + 3527 + 6012 + 2124
Example Output: 339

Example Input: 8625 - 7177 + 4191
Example Output: 11611

Example Input: 1727 - 9429 + 4303 + 1893 - 3993 - 9431 - 8931
Example Output:
27315