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: 5127 + 1503 + 9610 + 3348

Output: -9334


Input: Consider Input: 4292 - 7663 + 6931 + 1332 + 5698 + 4887 - 9479 - 1571 - 6095

Output: 10252


Input: Consider Input: 2283 - 6411 - 1620 - 3875 - 5920 - 4838 - 2069 + 6089 + 6001


Output: 14926