using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Dictionary<string, int> dictionary =new Dictionary<string, int>();

        //add items in dictionary

        dictionary.Add("linux", 1);

        dictionary.Add("windows", 2);

        dictionary.Add("mac", 3);

        //PrintDictionary

        Console.WriteLine("Dictionary after adding values:");

        ForEachDictionary(dictionary);

        Console.WriteLine();

        //remove item from dictionary

        dictionary.Remove("mac");

        Console.WriteLine("Dictionary after removing a value:");

        ForEachDictionary(dictionary);

    }

    //print dictionary using foreach loop

    public static void ForEachDictionary(Dictionary<string, int> dictionary)

    {

        foreach(KeyValuePair<string, int> kvp in dictionary)

        {

            Console.WriteLine("Key: "+kvp.Key +" Value:"+kvp.Value);

        }

​

    }

}