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: 6063 + 9874 + 5939 - 5013 + 791

Output: -5528


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

Output: 36288


Input: Consider Input: 1536 - 8227 + 2897 + 209 - 3017 - 442 + 9547 - 5807


Output: 6376