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: 5355 - 3029 - 4426 - 467 + 3089 - 2982 - 4645 - 9070 - 3676

Output: 30561


Input: Consider Input: 344 + 4107 + 9401 + 4490 - 5191 - 1753 - 5869 + 8385 - 7325

Output: -5901


Input: Consider Input: 2510 - 5839 + 9950 + 740


Output: -2341