Task: Program Execution
Input (English): 7, g, 1, 0, 5, x, 4
Output (English): [['7', 'g', '1', '0', '5', 'x'], ['7', 'g', '1', '0', '5', '4'], ['7', 'g', '1', '0', 'x', '4'], ['7', 'g', '1', '5', 'x', '4'], ['7', 'g', '0', '5', 'x', '4'], ['7', '1', '0', '5', 'x', '4'], ['g', '1', '0', '5', 'x', '4']]