Task: Program Execution
Input (English): 1, 8, 4, y, N, M, B
Output (English): [['1', '8', '4', 'y', 'N', 'M'], ['1', '8', '4', 'y', 'N', 'B'], ['1', '8', '4', 'y', 'M', 'B'], ['1', '8', '4', 'N', 'M', 'B'], ['1', '8', 'y', 'N', 'M', 'B'], ['1', '4', 'y', 'N', 'M', 'B'], ['8', '4', 'y', 'N', 'M', 'B']]