using System;

using System.Data;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public class BlockData

    {

        public int unit1; // valid values are [0-259]

        public bool unit2;

        public int unit3; // valid values are [5-245]

​

        public override string ToString()

        {

            return $"{unit1}|{unit2}|{unit3}";

        }

    }

    public static void Main()

    {

        var all = from u1 in Enumerable.Range(0, 260)

                      from u2 in Enumerable.Range(0, 2).Select(i => i == 1)

                      from u3 in Enumerable.Range(5, 241)

                      select new BlockData { unit1 = u1, unit2 = u2, unit3 = u3 };

​

       Console.Write(string.Join(Environment.NewLine, all));

    }

}