Task: Program Execution
Input (English): 9, 7, 6, 2, 1, K, 9
Output (English): [['9', '7', '6', '2', '1', 'K'], ['9', '7', '6', '2', '1', '9'], ['9', '7', '6', '2', 'K', '9'], ['9', '7', '6', '1', 'K', '9'], ['9', '7', '2', '1', 'K', '9'], ['9', '6', '2', '1', 'K', '9'], ['7', '6', '2', '1', 'K', '9']]