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: 6844 + 1340 - 4174 - 5664 + 4911 - 5241

Output: 15672


Input: Consider Input: 5525 + 201 - 6676 - 332 - 3348

Output: 15680


Input: Consider Input: 1303 + 5064 + 8182 - 2654 + 1937 + 4957 - 6348 - 688 + 9211


Output: -18358