using System;
using System.Collections.Generic;

public class SortedDictionaryExample
{
    public static void Main(string[] args)
    {
        SortedList names = new SortedList();
        names.Add("1","Sonoo");  
        names.Add("4","Peter");  
        names.Add("5","James");  
        names.Add("3","Ratan");  
        names.Add("2","Irfan");  
        foreach (KeyValuePair kv in names)
        {
            Console.WriteLine(kv.Key+" "+kv.Value);
        }
    }
}

1 Sonoo
2 Irfan
3 Ratan
4 Peter
5 James