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: 2342 + 4498 - 5816 + 2604 - 6155 - 2683 - 1893 - 2482

Output: 14269


Input: Consider Input: 8671 + 9945 - 8465 - 5276 + 1447

Output: 11020


Input: Consider Input: 8954 - 2117 - 7290 - 3578 + 7956 + 8806


Output: 5177