7 - https://drive.google.com/file/d/1ddFf2dTrquBgVmro7VYVGX_x49SqwtnT/view?usp=sharing
8 - https://drive.google.com/file/d/1BP4vqzE67EuQh4nPC5eZROzZosYnOL4G/view?usp=sharing