Task: Program Execution
Input (English): F, 1, 6, 4, 2, 9
Output (English): [['F', '1', '6', '4', '2'], ['F', '1', '6', '4', '9'], ['F', '1', '6', '2', '9'], ['F', '1', '4', '2', '9'], ['F', '6', '4', '2', '9'], ['1', '6', '4', '2', '9']]