Asi se ven las URLs solo reemplaza el ID.
https://i3.ytimg.com/vi/dQw4w9WgXcQ/maxresdefault.jpg
https://i3.ytimg.com/vi/dQw4w9WgXcQ/sddefault.jpg
https://i3.ytimg.com/vi/dQw4w9WgXcQ/mqdefault.jpg
https://i3.ytimg.com/vi/dQw4w9WgXcQ/2.jpg https://i3.ytimg.com/vi/dQw4w9WgXcQ/1.jpg
https://i3.ytimg.com/vi/dQw4w9WgXcQ/0.jpg
