7 - https://drive.google.com/file/d/1zE4pD2bif_Hzqj4fu2SLyosczVeEBNwA/view?usp=sharing
8 - https://drive.google.com/file/d/1H4BtBm6fyCjKnD7u2yb1eGRvBzjbQkZP/view?usp=sharing