using System;
using System.Numerics;
using System.Globalization;
public class Example
{
public static void Main()
{
// Redefine the negative sign as the tilde for the invariant culture.
NumberFormatInfo bigIntegerFormatter = new NumberFormatInfo();
bigIntegerFormatter.NegativeSign = "~";
BigInteger value = BigInteger.Parse("-903145792771643190182");
string[] specifiers = { "C", "D", "D25", "E", "E4", "e8", "F0",
"G", "N0", "P", "R", "X", "0,0.000",
"#,#.00#;(#,#.00#)" };
foreach (string specifier in specifiers)
Console.WriteLine("{0}: {1}", specifier, value.ToString(specifier,
bigIntegerFormatter));
}
}