using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        Dictionary<string, string> myDtStrStr = new Dictionary<string, string>();

        myDtStrStr.Add("FirstName", "John");

        myDtStrStr.Add("LastName", "Sydney");

        myDtStrStr.Add("Address", "Sydney");

        foreach(KeyValuePair<string, string> item in myDtStrStr)                //Specifying the exact datatype of Key and Value using KeyValuePair

        {

            Console.WriteLine("Key: "+item.Key+"\tValue: "+item.Value);

        }

    }

}