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: 9910 + 9584 - 6394 - 5927

Output: 12647

Input: Consider Input: 6063 - 1864 - 483 - 1341 - 2631 + 8383 - 1284

Output: 5283

Input: Consider Input: 2437 - 7979 - 6079 - 756 + 8158 + 6168 - 5748
Output: 8673