using System;

public class Program

{

    public static void Main()

    {

        int i  = 0;

        for (int j = 0 ; j <= 10 ; j ++) {

            i = (int)Math.Pow(2,j);

            Console.WriteLine( "log2("+ i +") = "+  Math.Log(i,2)  );           

        }       

    }

}