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: 4444 + 4575 - 2114 - 4099

Output: 6082


Input: Consider Input: 2372 + 1272 - 6861 - 1715 - 7374 + 9798 - 7485

Output: 14737


Input: Consider Input: 1650 - 2227 + 3184 - 5614 + 3534 - 8893 + 6566 + 8309 + 110


Output: -3319