"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-06 14:38:56.249297
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for executing a function with fallback support in case of failure.
    
    Parameters:
        - primary_executor: The main function to execute.
        - fallback_executor: The function to use as a fallback if the primary fails.
        
    Raises:
        - Exception: If either of the executors is not callable.
    """
    
    def __init__(self, primary_executor: Callable[..., Any], fallback_executor: Callable[..., Any]):
        if not callable(primary_executor) or not callable(fallback_executor):
            raise ValueError("Both primary and fallback executors must be callable.")
        
        self.primary_executor = primary_executor
        self.fallback_executor = fallback_executor
    
    def execute(self, *args, **kwargs) -> Any:
        """
        Execute the primary function. If an exception is raised, attempt to run the fallback function.
        
        Returns:
            The result of the primary or fallback function execution, based on success.
            
        Raises:
            Any exceptions from the fallback function if it fails after the primary.
        """
        try:
            return self.primary_executor(*args, **kwargs)
        except Exception as e:
            print(f"Primary execution failed: {e}")
            try:
                return self.fallback_executor(*args, **kwargs)
            except Exception as fe:
                print(f"Fallback execution also failed: {fe}")
                raise


# Example usage
def primary_add(a: int, b: int) -> int:
    """Add two numbers."""
    if a == 0 or b == 0:
        return 0
    return a + b


def fallback_add(a: int, b: int) -> int:
    """Fallback addition logic that always returns 50 regardless of inputs."""
    return 50


fallback_executor = FallbackExecutor(primary_executor=primary_add, fallback_executor=fallback_add)
result = fallback_executor.execute(10, 20)  # Should return 30
print(result)

# Handling zero input for primary function to trigger fallback logic
result_fallback = fallback_executor.execute(0, 0)  # Should return 50 from the fallback
print(result_fallback)
```