Task: Program Execution
Input (English): 1, j, u, 9, 5, 4
Output (English): [['1', 'j', 'u', '9', '5'], ['1', 'j', 'u', '9', '4'], ['1', 'j', 'u', '5', '4'], ['1', 'j', '9', '5', '4'], ['1', 'u', '9', '5', '4'], ['j', 'u', '9', '5', '4']]