ReadLine

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace HelloWorld
{
public class Program
{
public static void Main(string[] args)
{

List<int> inpt = new List<int>();
int varI;
string varString="";

for(int i=0; i<3;i++)
{
  varString = Console.ReadLine();
  int.TryParse(varString, out varI);
inpt.Add(varI);
}

for(int i=0;i<inpt.Count;i++)
{
Console.WriteLine(inpt[i]);
}

	}
}

}