using System.Globalization;
using System.Text.RegularExpressions;
public static void Main()
Regex rgx = new Regex(@"^[a-z]{1}");
string[] tests = { "MoS5WWWW!WWWWWWW" };
foreach (string test in tests)
Console.WriteLine("{0} is a currency value.", test);
Console.WriteLine("{0} is not a currency value.", test);