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: 9634 + 5896 + 2965 + 6949 - 2226 + 9649 - 3599 - 7110

Output: -2890


Input: Consider Input: 7046 + 1051 + 7955 - 966


Output: -994