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: 5355 - 3029 - 4426 - 467 + 3089 - 2982 - 4645 - 9070 - 3676

Output: 30561


Input: Consider Input: 5127 + 1503 + 9610 + 3348

Output: -9334


Input: Consider Input: 5339 + 1067 - 1187 + 8872 + 348


Output: -3761