Task: Program Execution
Input (English): 2, 5, g, 3, 5, W, u
Output (English): [['2', '5', 'g', '3', '5', 'W'], ['2', '5', 'g', '3', '5', 'u'], ['2', '5', 'g', '3', 'W', 'u'], ['2', '5', 'g', '5', 'W', 'u'], ['2', '5', '3', '5', 'W', 'u'], ['2', 'g', '3', '5', 'W', 'u'], ['5', 'g', '3', '5', 'W', 'u']]