ChefJumping.Program.Main C# (CSharp) Method

        static void Main(string[] args)
        {
            long a = long.Parse(Console.ReadLine());
            long x = a % 6;
            if (x == 0 || x == 1 || x == 3)
                Console.WriteLine("yes");
            else
                Console.WriteLine("no");
            Console.ReadLine();
        }