[C#] Const 상수 사용법

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace ConsoleApplication8
{
    class Program
    {
        public class cons { public const int BOY = 8, MAN = BOY +12;}
 
        static void Main(string[] args)
        {
            Console.WriteLine("Boy : "+ cons.BOY);
            Console.WriteLine("Boy : "+ cons.MAN);
        }
    }
}