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: 5525 + 201 - 6676 - 332 - 3348

Output: 15680


Input: Consider Input: 2269 + 7840 - 467 - 5626

Output: 522


Input: Consider Input: 8872 + 7236 + 2012 - 9174 + 7637 - 2537 + 7325


Output: -3627