using static System.Console;

using System.Text;

using System.Diagnostics;

public class Program {

    public static void Main() {

        var sw = new Stopwatch();

        sw.Start();

        for (var i = 0; i < 1000; i++) ASCII_binary("teste");

        sw.Stop();

        WriteLine(sw.ElapsedTicks);

        sw.Restart();

        for (var i = 0; i < 1000; i++) ASCII_binaryIneficiente("teste");

        sw.Stop();

        WriteLine(sw.ElapsedTicks);

    }

    public static string ASCII_binary(string texto) {

        var converted = "";

        byte[] byteArray = Encoding.ASCII.GetBytes(texto);

        for (var i = 0; i < byteArray.Length; i++) {

            for (var j = 0; j < 8; j++) {

                converted += (byteArray[i] & 0x80) > 0 ? "1" : "0";

                byteArray[i] <<= 1;

            }

        }

        return converted;

    } 

    public static string ASCII_binaryIneficiente(string texto) {

        var converted = "";

        byte[] byteArray = Encoding.ASCII.GetBytes(texto);

        for (var i = 0; i < byteArray.Length; i++) {

            for (var j = 0; j < 8; j++) {

                converted += (byteArray[i]) > 127 ? "1" : "0";

                byteArray[i] *= 2;

            }

        }

        return converted;

    } 

}