"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-07 05:18:29.846662
"""

```python
class FallbackExecutor:
    """
    A class for executing tasks with fallback mechanisms in case of errors.

    This implementation includes a main executor that attempts to perform a task,
    and a fallback mechanism if an exception occurs during execution.
    
    :param main_function: The primary function to execute, expected to take args and kwargs
    :type main_function: callable
    :param fallback_function: A secondary function to execute in case of failure, also takes args and kwargs
    :type fallback_function: callable
    """

    def __init__(self, main_function: callable, fallback_function: callable):
        self.main = main_function
        self.fallback = fallback_function

    def run(self, *args, **kwargs) -> None:
        """
        Execute the task with a fallback in case of error.
        
        :param args: Positional arguments to pass to the functions
        :type args: tuple
        :param kwargs: Keyword arguments to pass to the functions
        :type kwargs: dict
        """
        try:
            result = self.main(*args, **kwargs)
            print(f"Execution successful: {result}")
        except Exception as e:
            print(f"Error occurred during main function execution: {e}")
            print("Attempting fallback...")
            try:
                result_fallback = self.fallback(*args, **kwargs)
                print(f"Fallback succeeded: {result_fallback}")
            except Exception as fe:
                print(f"Error in fallback: {fe}")

def example_main_function(x: int) -> str:
    """Divide by zero intentionally to demonstrate error handling."""
    1 / x
    return "Success"

def example_fallback_function(x: int) -> str:
    """Simply returns the input without any operations."""
    return f"Input was {x}"

# Example usage
if __name__ == "__main__":
    executor = FallbackExecutor(example_main_function, example_fallback_function)
    print("Executing main function...")
    executor.run(0)
```