Task: Program Execution
Input (English): C, F, Q, v, x, 9, k
Output (English): [['C', 'F', 'Q', 'v', 'x', '9'], ['C', 'F', 'Q', 'v', 'x', 'k'], ['C', 'F', 'Q', 'v', '9', 'k'], ['C', 'F', 'Q', 'x', '9', 'k'], ['C', 'F', 'v', 'x', '9', 'k'], ['C', 'Q', 'v', 'x', '9', 'k'], ['F', 'Q', 'v', 'x', '9', 'k']]