Task: Program Execution
Input (English): 2, h, 5, a, p, 4
Output (English): [['2', 'h', '5', 'a', 'p'], ['2', 'h', '5', 'a', '4'], ['2', 'h', '5', 'p', '4'], ['2', 'h', 'a', 'p', '4'], ['2', '5', 'a', 'p', '4'], ['h', '5', 'a', 'p', '4']]