using System;

using System.Collections.Generic;

using System.Text;

​

public class Program

{

    public static void Main()

    {

        string input = "0100100001100101011011000110110001101111001000000101011101101111011100100110110001100100";

        List<byte> bList = new List<byte>();

        for (int i = 0; i < input.Length; i += 8)

        {

            bList.Add(Convert.ToByte(input.Substring(i, 8), 2));

        }

​

        string result = Encoding.UTF8.GetString(bList.ToArray());

        Console.WriteLine(result);

    }

}