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: 6562 - 9064 - 1127 + 8483 + 5128 + 3972 - 4330 + 908 - 7990
Example Output: 10582

Example Input: 1737 + 1422 + 9162 - 7244 + 6133
Example Output: -7736

Example Input: 6597 + 1596 - 358 - 9057 + 993
Example Output:
13423