Task: Program Execution
Input (English): 1, h, 6, 2, 1, N, x
Output (English): [['1', 'h', '6', '2', '1', 'N'], ['1', 'h', '6', '2', '1', 'x'], ['1', 'h', '6', '2', 'N', 'x'], ['1', 'h', '6', '1', 'N', 'x'], ['1', 'h', '2', '1', 'N', 'x'], ['1', '6', '2', '1', 'N', 'x'], ['h', '6', '2', '1', 'N', 'x']]