using System;

using System.Collections.Generic;

using System.Linq;

​

public class Transcription

{

​

    public string Complement (string DNA) {

        var trans = new Dictionary <char, char>() {{'G', 'C'},{'C', 'G'},{'T', 'A'},{'A', 'U'}};

        var change = from x in trans.va 

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

}