using System;
using System.Numerics;
public class Example
{
static byte[] bytes;
public static void Main()
{
BigInteger[] numbers = { Int64.MinValue, Int64.MaxValue, };
foreach (BigInteger number in numbers)
{
bytes = number.ToByteArray();
foreach (byte byteValue in bytes)
Console.Write("{0:X2} ", byteValue);
}
}
}