error CS1514

using System;

class Program
class Console
{
    static void Multiply()
    {
        Console.WriteLine(Multiply(2.5, 2));
        Console.WriteLine(Multiply(6, 7));
    }
    // YOUR CODE HERE: Define a method named Multiply. Remember
    // to use the "static" and "void" keywords: "static void
    // Multiply" (without quotes). Multiply should take two
    // "double" values as parameters.
    static double Add(double first, double second)
    {
        return first + second;
    }
    static double Subtract(double first, double second)
    {
        return first + second;

        static void Main(string[] args)
        {
            Multiply();
            // YOUR CODE HERE:
            // Call Multiply with two arguments: 2.5 and 2.
            // YOUR CODE HERE:
            // Call Multiply with two arguments: 6 and 7.
        }