using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var namesList = new []{"James", "Vince", "Joe", "Joseph", "John"};

        var numsList = Enumerable.Range(1,namesList.Length).ToList().Shuffle();

        var namesNumsList = namesList.Select( (n,i) => $"{n} {numsList[i]}").ToList();

        foreach(var nameNum in namesNumsList)

            Console.WriteLine(nameNum);

    }

}

​

public static class ListExtensions

{

    private static Random rng = new Random();

​

    public static IList<T> Shuffle<T>(this IList<T> list)

    {

        int n = list.Count;

        while (n > 1) {

            n--;

            int k = rng.Next(n + 1);

            T value = list[k];

            list[k] = list[n];

            list[n] = value;

        }

​

        return list;

    }

}