using System;

class SeqApp {

  public static void Main(){

    IntSequence isq = 
      new IntCompSeq(
            new IntCompSeq(
              new IntInterval(3,5), new IntSingular(-7) ),
            new IntCompSeq(
              new IntInterval(12,7), new IntCompSeq(
                                           new IntInterval(18,-18),
                                           new IntInterval(3,5)
                                           )));

    Console.WriteLine("Min: {0} Max: {1}", isq.Min, isq.Max);
    Console.WriteLine("Sum: {0}", isq.Sum());
  }

}