Task: Program Execution
Input (English): 9, 2, K, 8, 4, 0, x
Output (English): [['9', '2', 'K', '8', '4', '0'], ['9', '2', 'K', '8', '4', 'x'], ['9', '2', 'K', '8', '0', 'x'], ['9', '2', 'K', '4', '0', 'x'], ['9', '2', '8', '4', '0', 'x'], ['9', 'K', '8', '4', '0', 'x'], ['2', 'K', '8', '4', '0', 'x']]