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: 9231 - 9608 - 4765 - 8085 - 9489

Output: 41178


Input: Consider Input: 7240 - 3294 - 2859 + 1798 + 9958 - 6797

Output: 8434


Input: Consider Input: 178 + 5236 - 8372 - 6825 + 1044 - 7818 - 4765 + 7418


Output: 14260