Task: Program Execution
Input (English): 1, 8, 2, 4, 9, H
Output (English): [['1', '8', '2', '4', '9'], ['1', '8', '2', '4', 'H'], ['1', '8', '2', '9', 'H'], ['1', '8', '4', '9', 'H'], ['1', '2', '4', '9', 'H'], ['8', '2', '4', '9', 'H']]