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: 1701 + 3893 - 695 + 2870 + 5011
Example Output: -9378

Example Input: 3477 + 8970 + 2278 - 9906 - 106 - 208 - 1334
Example Output: 3783

Example Input: 6718 + 5444 + 1488 + 5986 + 7739 - 3048 + 4944 + 313
Example Output:
-16148