using System;

public class Program

{

    static double riceGrains = 1;

    public static void Main()

    {

        for(int i=1;i<=64;i=i+1)

        doubleIt();

        Console.WriteLine(riceGrains);

    }

    public static void doubleIt()

    {

        riceGrains = riceGrains * 2;

        Console.WriteLine(riceGrains);

    }

​

}