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.

Input: Consider Input: 3337 + 9906 + 9733 - 853 + 5075 - 2064 + 9450 - 3886

Output: -24024


Input: Consider Input: 1922 - 413 - 5668

Output: 8003


Input: Consider Input: 2567 + 6188 - 3164 + 1484 + 724 - 9649 - 6895 + 3775 + 1111


Output: 8993