Task: Program Execution
Input (English): J, 5, P, 9, a, 2
Output (English): [['J', '5', 'P', '9', 'a'], ['J', '5', 'P', '9', '2'], ['J', '5', 'P', 'a', '2'], ['J', '5', '9', 'a', '2'], ['J', 'P', '9', 'a', '2'], ['5', 'P', '9', 'a', '2']]