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: 1075 - 4704 - 8582 + 2960 + 8010 + 617 - 4972 + 2013

Output: 5733

Input: Consider Input: 6800 + 2564 + 8444 + 1912

Output: -6120

Input: Consider Input: 322 + 9284 + 98 + 4634
Output: -13694