How to make such input?

Question

css

Hey!
design
screenshot Have you seen such an input input? maybe there is some kind of plugin or you know in which direction to look, I will be grateful for the info :)

Answer 1

8 inputs and write a script that will focus the next inputs when a value is entered in the previous one. and vice versa with backspace for example. something like this:
https://jsfiddle.net/edbfwc5s/3/

Answer 2

or like this https://stackoverflow.com/questions/38746130/limit...
or multiple inputs when entering which change focus to the next one using js