using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Random num = new Random();

        List<int> numbers = new List<int>();

        for( ; numbers.Count < 5; )

        {

            int index = num.Next(1, 10);

            if(numbers.Contains(index))

                continue;

            else numbers.Add(index);

        }

        Console.Write("Now output the random number list:");

        foreach(int index in numbers)

            Console.Write(" " + index);

        RemoveAllEven(numbers);

        Console.WriteLine();

        Console.Write("Now output the random number list after remove:");

        foreach(int index in numbers)

            Console.Write(" " + index);

    }

    public static void RemoveAllEven(List<int> list)

    {

        for(int i = 0; i < list.Count; )

        {

            if(list[i] % 2 == 0)

                list.RemoveAt(i);

            else i++;

        }

    }

}