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: 6040 + 5815 + 9288 + 5107 + 5697 + 7993 - 672 + 8297

Output: -35485


Input: Consider Input: 5527 - 35 - 9988 + 7417 - 5498

Output: 13631


Input: Consider Input: 6704 + 69 + 617 + 7950 - 7615 + 9447 - 8908


Output: 5144