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: 4035 - 7636 + 5719 + 8287 + 9317 - 8218 + 4932 + 2275 - 9347
Example Output: -1294

Example Input: 1943 + 6084 + 8719 + 2400 + 8595 - 7077 + 1264
Example Output: -18042

Example Input: 7591 + 2427 + 6553 + 4047 - 9300 + 2235 + 7278
Example Output:
-5649