using System;
using System.Text.RegularExpressions;
using System.Linq;
 
public class Test
{
	public static void Main()
	{
		string pattern = @"(?:\[|\G(?!^))('[^']+'),?(?=[^\]]*\])";
        string input = @"cov('Age', ['5','7','9'])";
 
        var results = Regex.Matches(input, pattern)
        .Cast<Match>()
        .Select(m => m.Groups[1].Value)
        .ToArray();
 
        foreach(string result in results)
        {
            Console.WriteLine(result);
        }
	}
}

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