Task: Program Execution
Input (English): 0, H, 5, 4, 5, 4, a
Output (English): [['0', 'H', '5', '4', '5', '4'], ['0', 'H', '5', '4', '5', 'a'], ['0', 'H', '5', '4', '4', 'a'], ['0', 'H', '5', '5', '4', 'a'], ['0', 'H', '4', '5', '4', 'a'], ['0', '5', '4', '5', '4', 'a'], ['H', '5', '4', '5', '4', 'a']]