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: 5473 - 4337 - 6499 - 9119

Output: 25428


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

Output: 13631


Input: Consider Input: 5798 + 7484 + 9307 + 3033 - 7750 + 6782 + 2330 + 2957 - 714


Output: -17631