"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 13:03:08.675904
"""

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

    Args:
        primary_executor (Callable): The main function to be executed.
        fallback_executors (List[Callable]): List of functions to be used as fallbacks, ordered by preference.

    Raises:
        Exception: If all fallbacks fail.

    Returns:
        Any: The result of the executed task or fallback.
    """

    def __init__(self, primary_executor: Callable[[Any], Any], fallback_executors: List[Callable[[Any], Any]]):
        self.primary_executor = primary_executor
        self.fallback_executors = fallback_executors

    def execute(self, *args, **kwargs) -> Any:
        """
        Execute the task or use a fallback if the primary execution fails.

        Args:
            *args: Positional arguments passed to the primary executor.
            **kwargs: Keyword arguments passed to the primary executor and fallbacks.

        Returns:
            The result of the successful execution or fallback.
        """
        try:
            return self.primary_executor(*args, **kwargs)
        except Exception as e:
            for fallback in self.fallback_executors:
                try:
                    return fallback(*args, **kwargs)
                except Exception as ex:
                    pass
            raise Exception("All fallbacks failed.") from e


# Example usage

def primary_task(a: int, b: int) -> int:
    """
    Add two numbers.
    """
    if a < 0 or b < 0:
        return -1
    return a + b


def fallback1(a: int, b: int) -> int:
    """Fallback that adds positive numbers."""
    return abs(a) + abs(b)


def fallback2(a: int, b: int) -> int:
    """Another fallback using modulo operation to ensure non-negative results."""
    return (a % 100) + (b % 100)


# Create a FallbackExecutor instance
executor = FallbackExecutor(primary_task, [fallback1, fallback2])

# Successful execution
result = executor.execute(5, 7)
print(result)  # Output: 12

# Error due to negative numbers
try:
    result = executor.execute(-3, 4)
except Exception as e:
    print(e)  # Output: All fallbacks failed.

# Corrected with a fallback
result = executor.execute(executor.fallback_executors[0], -3, 4)
print(result)  # Output: 7

# Another corrected case
result = executor.execute(executor.fallback_executors[1], -25, 38)
print(result)  # Output: 63
```