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: 5989 - 6394 + 3845 + 1679 - 5682 + 8226 - 674 - 1284

Output: 6273


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

Output: 15680


Input: Consider Input: 3413 - 3340 - 6152 - 2564 + 7375 + 8131 + 6397


Output: -6434