using System;
using System.Linq;
					
public class Program {
	public static void Main() {
		var lista = "1, 2, 3".Split(',').Select(int.Parse).ToList();
   		Console.WriteLine(lista.GetType());
		foreach (var item in lista) {
			Console.WriteLine(item);
		}
	}
}

//https://pt.stackoverflow.com/q/78471/101