using System.Text.RegularExpressions;

class Test {

static string CapText(Match m) {

// get the matched string

string x = m.ToString();

// if the first char is lower case

if (char.IsLower(x[0])) {

// capitalize it

return char.ToUpper(x[0]) + x.Substring(1, x.Length-1);

}

return x;

}

static void Main() {

string text = "four score and seven years ago";

System.Console.WriteLine("text=[" + text + "]");

string result = Regex.Replace(text, @"\w+",

new MatchEvaluator(Test.CapText));

System.Console.WriteLine("result=[" + result + "]");

}

}