using System;
using System.Linq;

public class Test
{
	public static void Main()
	{
		var data = Enumerable.Range(1, 7);
		var r = from a in data
		        join b in data on 1 equals 1
		        join c in data on 1 equals 1
		        where a < b && b < c
		        select new {a, b, c};
		foreach (var x in r) {
			Console.WriteLine("{0} {1} {2}", x.a, x.b, x.c);
		}
	}
}