using System;

class Program
    {
        static void Random_Func()
        {
            var random = new Random();
            var input = random.Next(1000);
            Console.Write(input + " ");
        }

        static void Main(string[] args)
        {
            Console.Write("Random : ");
            for (int i=0; i<2; i++)
            {
                var random = new Random();
                var input = random.Next(1000);
                Console.Write(input + " "); 
            }
            Console.WriteLine();

            Console.Write("Random_Func : ");
            for (int i=0; i<2; i++)
                Random_Func();
            Console.WriteLine();

            Console.Write("Random  : ");
            var ran = new Random();
            for (int i = 0; i < 2; i++)
            {
                var input = ran.Next(1000);
                Console.Write(input + " ");
            }
            Console.WriteLine();

            Console.ReadKey();
        }
    }