using System;
using System.Text.RegularExpressions;
public class Program {
public static void Main() {
String s = "12abc 9836 xy%^(s 33 * 9 ppp 100";
string[] numbers = Regex.Split(s, @"\D+");
foreach (string item in numbers) {
if (!string.IsNullOrEmpty(item)) {
int n = int.Parse(item);
Console.WriteLine("{0}", n);
}
}
}
}
/*
run:
12
9836
33
9
100
*/