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: 3385 - 6152 + 1565 - 9813 - 5112 - 2865 + 2979
Example Output: 22783

Example Input: 5856 - 8885 - 8510 + 7879 + 2100
Example Output: 13272

Example Input: 1107 + 9957 + 3044 + 3999 - 9003 - 1965 - 2472 - 5067
Example Output:
2614