using System;

using System.Collections.Generic;

​

var PeopleOnCall = new List<Person>(){

  new Person("Ben", "Niederee")

, new Person("Leslie","Kelly")

};

PrintPeople(PeopleOnCall);

​

void PrintPeople(List<Person> people)

{

    for(int i = 0;i<people.Count;i++)

    {

        var person = people[i];

        Console.WriteLine($"{person.FirstName} is number {i}");

    }

    Console.WriteLine(string.Empty);

    var ii = 1;

    foreach(var person in people)

    {

        Console.WriteLine($"{person}");

        ii++;

    }

}

​

public record Person(string FirstName, string LastName);