using System;

​

public class Program

{

    public static void Main()

    {

        int[] tmp = new int[10];

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

        {

            Console.WriteLine("Please enter a number:");

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

        }

​

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

            tmp[i] = tmp[i] * 2;

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

        {

            Console.WriteLine("number {0} is " + tmp[i], i + 1);

        }

    }

}