using System;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
using System.Text.RegularExpressions;
using System.Reflection;
public class MainClass{
public static void Main(){
Regex r = new Regex(@"^\G\d+$\n?", RegexOptions.Multiline);
Match m = r.Match("13\n38\n18\n5");
do {
Console.WriteLine("Match: " + m.Value);
} while ((m = m.NextMatch()).Success);
}
}
Match: 13
Match: 38
Match: 18
Match: 5