Task: Program Execution
Input (English): H, P, 7, v, Q, 9
Output (English): [['H', 'P', '7', 'v', 'Q'], ['H', 'P', '7', 'v', '9'], ['H', 'P', '7', 'Q', '9'], ['H', 'P', 'v', 'Q', '9'], ['H', '7', 'v', 'Q', '9'], ['P', '7', 'v', 'Q', '9']]