7) https://drive.google.com/file/d/1fdRpaE1Rupnrgm0MkIl6vn11rICCdcYz/view?usp=sharing
8) https://drive.google.com/file/d/1bU_m3tyIxIQoMqK2IVh5NYhmSEuxnAXy/view?usp=sharing