using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        // Example dictionary

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

        myDictionary.Add("A", 1);

        myDictionary.Add("B", 2);

        myDictionary.Add("C", 3);

​

        // Check if the dictionary contains a value for the key "B"

        if (myDictionary.TryGetValue("B", out int value))

        {

            // The dictionary contains value for the key "B"

            Console.WriteLine(value);

        }

        else

        {

            // The dictionary does not contain a value for the key "B"

            Console.WriteLine("Value of key B is not found");

        }

    }

}