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: 6694 + 8723 - 1592 + 7366 + 9388
Example Output: -17191

Example Input: 6646 + 4878 - 8881 - 992 + 7276
Example Output: 4365

Example Input: 6032 - 1777 + 2892 - 4644 - 8492 + 9865 + 794 - 367 + 5664
Example Output:
2097