using System;

public class Program

{

    public static void Main()

    {

        double n=10;

        double[]Mass=new double[]{1,2,3,4,5,6,7,8,9,10};

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

        Console.WriteLine(" ");

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

    { 

         Mass[i] = Mass[i]*2;

        Console.WriteLine(" "+Mass[i]);

    }

        Console.ReadLine();

    }

}