Task: Program Execution
Input (English): 9, 7, U, g, 7, O
Output (English): [['9', '7', 'U', 'g', '7'], ['9', '7', 'U', 'g', 'O'], ['9', '7', 'U', '7', 'O'], ['9', '7', 'g', '7', 'O'], ['9', 'U', 'g', '7', 'O'], ['7', 'U', 'g', '7', 'O']]