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: 1471 + 6113 + 3177 - 2507 - 2358 + 6654

Output: -9608


Input: Consider Input: 321 - 4450 - 5504 - 9901 - 295 - 7018 - 1113 - 5299 - 2387

Output: 36288


Input: Consider Input: 7305 - 3322 - 4670 + 9392 - 609 + 6822 + 8999 - 4613


Output: -4694