------
## 最终结论
```python
def add_lists(lst, tup):
    lst_as_tuple = tuple(lst)
    return tup + lst_as_tuple

# Test cases
assert add_lists([5, 6, 7], (9, 10)) == (9, 10, 5, 6, 7)
assert add_lists([6, 7, 8], (10, 11)) == (10, 11, 6, 7, 8)
assert add_lists([7, 8, 9], (11, 12)) == (11, 12, 7, 8, 9)
```