How to prefill an input field in Unity C#?

Basically, I want the script to read a text file and put the text into a variable. Then, access the text element of a UI input field and put said text in there.

The referenced text file has one word per line, like this:

lineA

lineB

lineC

etc.

Here is my code:

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.UI;

using System.IO;

using System.Text;

public class EditorController : MonoBehaviour

{

string oldText;

string[] newText;

public Text inputFieldText;

private void Start()

{

oldText = File.ReadAllText(@"C:\Users\Public\Documents/topicgeneratorelement1.txt");

inputFieldText.text = oldText;

}

}

Don't worry about newText - that's for later, when the code is more developed. Right now, I just want the input field to be filled.