Youtube links to have a better understanding of what’s needed :

https://www.youtube.com/watch?v=0NnAWF2m0KU&t=1s. (Homework1B that’s mentioned)
https://www.youtube.com/watch?v=YZLfIPH8ELk&t=671s
https://www.youtube.com/watch?v=Jdq8xTHmRtk&t=17s
https://www.youtube.com/watch?v=HK_Rl6Uxc2w&t=1s
https://www.youtube.com/watch?v=71bJ8B-AF6I&t=1349s
https://www.youtube.com/watch?v=lj45u0gN7hM&t=2s
https://www.youtube.com/watch?v=oYF443rgBhQ&t=1s
https://www.youtube.com/watch?v=no7cI6iroNU&t=1160s
https://www.youtube.com/watch?v=oRJr3Qt3FmU&t=652s

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