using System;

using System.Linq;

using System.Numerics;

using Nethereum.Hex.HexConvertors.Extensions;

​

​

public class Exercise30 {

 public static void Main() {

    var difficulty = new BigInteger(1 * Math.Pow(2, 32));

    var target = BigInteger.Divide(BigInteger.Pow(2, 256), difficulty);

    var hex = target.ToByteArray(true, true).ToHex();

    var test = $"0x{string.Concat(Enumerable.Repeat("0", 64 - hex.Length))}{hex}";

​

    Console.WriteLine(test);

​

   }

}