7 - https://drive.google.com/file/d/1Wp-pwSia4BCiQfU2W-biPgSg3z3w9QS0/view?usp=sharing
8 - https://drive.google.com/file/d/1iE_81U1L-UTsrbNwFnzgkD_BBz-9YZrI/view?usp=sharing