using System;
using System.Text.RegularExpressions;
class Program
{
static void Main() {
string[] array = new[] {"15 c# 1", "18 vb 5", "900 c 10", "1380 c++ 129"};
foreach (var str in array) {
string[] numbers = Regex.Split(str, @"\D+");
Console.WriteLine("{0}", numbers[numbers.Length - 1]);
}
}
}
/*
run:
1
5
10
129
*/