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: 5161 + 8791 + 9352 + 7272 + 935 + 8632 + 1201

Output: -31022


Input: Consider Input: 7202 - 7230 - 3695 + 2434 + 5934 + 5439 + 687 + 2011

Output: 1622


Input: Consider Input: 7429 - 4152 - 3798 - 7597 - 7587


Output: 30563