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: 2348 - 6075 + 2149 - 1926 - 9532 - 9774 + 2760 - 6500 + 8335
Example Output: 22911

Example Input: 6492 - 3901 + 3666 + 9196 - 3917 - 133
Example Output: 1581

Example Input: 2295 + 377 + 740 - 3375 + 5097 + 4841 - 8074 + 7871
Example Output:
-5182