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: 5758 + 9179 - 1765 - 4142 - 8736

Output: 11222


Input: Consider Input: 5328 + 9563 + 7711

Output: -11946


Input: Consider Input: 8280 - 2607 - 4185 - 9243 + 9839


Output: 14476