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: 4054 + 5873 - 3926 - 2524 + 5551 - 1721

Output: 801


Input: Consider Input: 5162 - 4324 - 8160 + 9296 - 1881

Output: 10231


Input: Consider Input: 1441 + 7030 - 4658 - 6732 - 5528 - 4990 - 4626


Output: 20945