using System;
using System.Text.RegularExpressions;
 
class program
{
static void Main(string[] args)
{
string text = txt();
string pattern = @"a.";
Regex reg = new Regex(pattern);
MatchCollection m = reg.Matches(text);
show(reg,m);
}
 
static void show(Regex reg, MatchCollection m)
{
string[] names = reg.GetGroupNames();
foreach(Match match in m)
{
Console.WriteLine("value : {0}\n", match.Value);
/*length : {1}\nindex : {2}\nsuccess : {3} ",match.Value,match.Length,match.Index,match.Success );*/
 
}
 
}
static int finds(string text, string pattern)
{
return 0;
}
 
static string txt()
{
 
string text = "A string is an object of type String whose value is text. Internally, the text is stored as a sequential read-only collection of Char objects. There's no null-terminating character at the end of a C# string; therefore a C# string can contain any number of embedded null characters ('\0'). The Length property of a string represents the number of Char objects it contains, not the number of Unicode characters. To access the individual Unicode code points in a string, use the StringInfo object.";
return text;
}
}

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