using System;

using System.Linq;

​

// https://stackoverflow.com/questions/59562368/how-to-insert-to-arrays-with-some-factors-in-c/59562485#59562485

public class Program

{

    public static void Main()

    {

        var anyvar = "1 2 3";

        int[] arrayvar = anyvar.Split(' ').Select(Int32.Parse).ToArray(); 

        Console.WriteLine(arrayvar[1]); // expects 2 

    }

}