Task: Program Execution
Input (English): 9, 9, t, 6, w, K, U
Output (English): [['9', '9', 't', '6', 'w', 'K'], ['9', '9', 't', '6', 'w', 'U'], ['9', '9', 't', '6', 'K', 'U'], ['9', '9', 't', 'w', 'K', 'U'], ['9', '9', '6', 'w', 'K', 'U'], ['9', 't', '6', 'w', 'K', 'U'], ['9', 't', '6', 'w', 'K', 'U']]