using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var myDictionary = new Dictionary<int, string> { { 1, "ABC" }, { 2, "DEF" } };

        var expectedValues = new List<string> { "ABC", "DEF" };

        Console.WriteLine(expectedValues.SequenceEqual(MyValues(myDictionary)));

    }

    public static IEnumerable<string> MyValues(Dictionary<int, string> myDict)

    {

        foreach(var item in myDict)

        {

            yield return item.Value;

        }

    }

}