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: 3071 - 5299 + 206 + 3214 + 6040 + 5785 - 6760 - 8070

Output: 7955


Input: Consider Input: 9824 + 9255 - 8146 - 8393 - 6949 - 3238 + 2641 - 4068 + 4633

Output: 24089


Input: Consider Input: 3729 + 1189 - 6692 - 8273 + 6638 - 9383 + 3238


Output: 17012