How to make it so that by pressing a button on the site, in the form (select / input) the corresponding value is selected / entered?

Question

css

The site has buttons and a form, it is necessary that by pressing a button on the site, in the form:
1. In Select - the corresponding value is selected
2. In Input - the corresponding value is entered

Answer 1

Can

Answer 2

Well, like this, when you click, text is added to the end of the existing input

Answer 3

jsfiddle.net/lega911/oeru1vcn