using System;
using System.Text.RegularExpressions;
 
public class Test
{
	public static void Main()
	{
		string s = @"Damon Brown
Flat B University Place
26 Park Square 
London
E12 8SD
Mobile: 1111 22222
Email: dabrown192882@gmail.com	Date of birth: 21/03/1986
Gender: Male
Marital Status: Single
Nationality: English
Summary
I have acquired a multifaceted skill set with experience using several computing platforms.";
		string[] allLines = s.Split('\n');
        string expression = "^([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-Yj-y][0-9]{1,2})|(([AZa-z][0-9][A-Za-z])|([A-Za-z][A-Ha-hJ-Yj-y][0-9]?[A-Za-z])))) [0-9][A-Za-z]{2})$";
 
        foreach (string line in allLines)
        {
            if (Regex.IsMatch(line, expression))
            {                    
                Console.WriteLine(line);
            }
        }
	}
}

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