Task: Program Execution
Input (English): 7, 3, p, 6, 9, i, 4
Output (English): [['7', '3', 'p', '6', '9', 'i'], ['7', '3', 'p', '6', '9', '4'], ['7', '3', 'p', '6', 'i', '4'], ['7', '3', 'p', '9', 'i', '4'], ['7', '3', '6', '9', 'i', '4'], ['7', 'p', '6', '9', 'i', '4'], ['3', 'p', '6', '9', 'i', '4']]