using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
		var s = "37513220102304920105590";
    	var result = Regex.Matches(s, @"(?=([34][0-9]{10}))")
    		.Cast<Match>()
    		.Select(m => m.Groups[1].Value)
    		.ToList();
        foreach (var st in result)
        	Console.WriteLine(st);
	}
}