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: 4993 - 9334 - 5415 + 8531 - 5640 + 896 + 3114 - 1984

Output: 14825


Input: Consider Input: 7270 + 4138 - 1696 - 5719 - 9735 + 2360

Output: 17922


Input: Consider Input: 3249 + 313 + 7029 + 5721 + 7626


Output: -17440