using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        List<object> allhuman = new List<object>{null, null, 1};

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

        {

            if (allhuman[i] == null)

            {

                allhuman.RemoveAt(i);

            }

        }

​

        allhuman.ForEach(x => Console.WriteLine(x ?? "null"));

    }

}