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: 5856 - 8885 - 8510 + 7879 + 2100

Output: 13272


Input: Consider Input: 333 - 4061 - 2641 + 9107 - 876 + 913 - 2286 - 7626

Output: 7803


Input: Consider Input: 2351 + 6146 + 1272 + 5408 + 189 + 4766


Output: -15430