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: 7442 + 227 + 52 + 2436 - 3303 + 8408 + 4314

Output: -4692


Input: Consider Input: 2045 - 2088 - 8387 + 5185 + 2275 - 1337 - 2494 - 1644 + 9737

Output: 798


Input: Consider Input: 7932 + 8861 + 1272 - 8535


Output: 6334