using System;
using System.Console;
using Nemerle.Imperative;

module Break
{
    Main() : void
    {
        def rnd = Random();
        while (true)
        {
            def a = rnd.Next(20);
            WriteLine(a);
            when (a == 10) break;
            def b = rnd.Next(20);
            WriteLine(b);
        }
    }
}