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: 826 - 6501 - 223 + 9761 - 8863
Example Output: 6652

Example Input: 1540 + 6977 + 9400 - 5524 - 1970 + 8397 - 6006 + 3183
Example Output: -12917

Example Input: 5632 + 7524 - 3352 - 399 - 7635 - 4301 - 6360
Example Output:
20155