using System;

public class Program

{

    public static void Main()

    {

        Random x = new Random();

        int[] n=new int [10];

        Console.WriteLine("enter num:");

        for(int i=0;i<n.Length;i++)

        n[i]= int.Parse(Console.ReadLine());

        Console.WriteLine("[0]-" + n[0]);

        Console.WriteLine("[1]-" + n[1]);

        Console.WriteLine("[9]-" + n[9]);

        for(int i=0;i<n.Length;i++)

        Console.WriteLine(i+"-->"+n[i]);

        n[4]=x.Next(0,1001);

        Console.WriteLine("LOOK"+ n[4]);

        for(int i=0;i<n.Length;i++)

        if(i%2==0)

        Console.WriteLine(i);

    }

}