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: 1943 + 6084 + 8719 + 2400 + 8595 - 7077 + 1264

Output: -18042


Input: Consider Input: 5000 + 8474 - 7071 - 6976 + 6373 - 466

Output: 4666


Input: Consider Input: 1761 - 5336 - 9756 - 4389 - 692 - 7405 + 2355 + 7988 - 8297


Output: 27293