Task: Program Execution
Input (English): 7, 4, p, e, 9, 2
Output (English): [['7', '4', 'p', 'e', '9'], ['7', '4', 'p', 'e', '2'], ['7', '4', 'p', '9', '2'], ['7', '4', 'e', '9', '2'], ['7', 'p', 'e', '9', '2'], ['4', 'p', 'e', '9', '2']]