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: 1860 - 6675 + 8615 + 485 + 6302 - 3385 + 1568

Output: -5050


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

Output: 19536


Input: Consider Input: 9992 - 4666 + 9902 - 9609 + 3283 - 6441 + 4418 - 2673 + 1667


Output: 14111