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: 7930 - 2835 - 1925 - 6613
Example Output: 19303

Example Input: 4203 - 2197 - 5419 - 9369 + 4447 - 2386 - 94
Example Output: 19221

Example Input: 1898 - 838 - 9095 - 4396 + 4302 + 9851 - 1997 - 4041
Example Output:
8112

