Task: Program Execution
Input (English): E, 7, 9, H, Q, 2, B
Output (English): [['E', '7', '9', 'H', 'Q', '2'], ['E', '7', '9', 'H', 'Q', 'B'], ['E', '7', '9', 'H', '2', 'B'], ['E', '7', '9', 'Q', '2', 'B'], ['E', '7', 'H', 'Q', '2', 'B'], ['E', '9', 'H', 'Q', '2', 'B'], ['7', '9', 'H', 'Q', '2', 'B']]