Task: Program Execution
Input (English): z, K, 2, 9, o, 4, B
Output (English): [['z', 'K', '2', '9', 'o', '4'], ['z', 'K', '2', '9', 'o', 'B'], ['z', 'K', '2', '9', '4', 'B'], ['z', 'K', '2', 'o', '4', 'B'], ['z', 'K', '9', 'o', '4', 'B'], ['z', '2', '9', 'o', '4', 'B'], ['K', '2', '9', 'o', '4', 'B']]