using System;
using System.Text.RegularExpressions;
 
public class Test
{
	public static void Main()
	{
		string s = "Damon Brown\r\nFlat B University Place\r\n26 Park Square \r\nLondon\r\nE12 8SD\r\nMobile: 1111 22222\r\nEmail: dabrown192882@gmail.com	Date of birth: 21/03/1986\r\nGender: Male\r\nMarital Status: Single\r\nNationality: English\r\nSummary\r\nI have acquired a multifaceted skill set with experience using several computing platforms.";
		string[] allLines = s.Split(new[] {"\r\n"}, StringSplitOptions.RemoveEmptyEntries);
        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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