I want to find the index/ or position of the word that my program found to be the longest in the string

This is my code, I am taking input from user, I want to find out the index/ or position of the longest word in the string the user is typing. I can’t seem to figure this out!
Wherever I try to find help, I get indexOf() method in which you manually have to type the word of which you are trying to find index.

This is my code:

using System;
using System.Linq;

public class Question1
{
public static void Main(string[] args)
{
   
    Console.WriteLine("Enter String:");
    string line = Console.ReadLine();
    string[] words = line.Split(new[] { " " }, StringSplitOptions.None);
    string word = "";
    int ctr = 0 , len, max = 0;
    
    foreach (String s in words)
    {
        if (s.Length > ctr)
        {
            word = s;
            ctr = s.Length;
           

        }

    }
    Console.WriteLine("Longest String : " + word);
    Console.WriteLine("Length : " + ctr);

}
 }

>Solution :

You can find the index of the word you’ve found like this:

int indexOfWord = line.IndexOf(word, StringComparison.CurrentCulture);

So if the word is the first word, indexOfWord will be 0. If it’s "William" in "Hello William", then it will be 6, etc.

Try it online