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: 5342 - 6456 - 9929 + 3119 - 1242 + 314

Output: 19536


Input: Consider Input: 6355 - 3589 + 7310 - 5161 + 9803

Output: -2008


Input: Consider Input: 2794 - 1907 - 4796 + 1575 + 6904 - 2752 + 8010 + 5798 + 713


Output: -10751