//George Bolkvadze 231RBC181 Grupa--7

using System;

using System.Collections.Generic;

​

class Program

{

    static void Main()

    {

        try

        {

            Console.WriteLine();

            List<int> sequence1 = ReadSequence();

​

            Console.WriteLine();

            List<int> sequence2 = ReadSequence();

​

​

            foreach (int number in sequence1)

            {

                if (!sequence2.Contains(number))

                {

                    Console.WriteLine(number);

                }

            }

        }

        catch (Exception)

        {

            Console.WriteLine("error");

        }

    }

​

    static List<int> ReadSequence()

    {

        List<int> sequence = new List<int>();

        while (true)

        {

            string input = Console.ReadLine();

​

            if (!int.TryParse(input, out int number))

            {

                throw new Exception("Ievades kļūda");

            }

​

            if (number == 0) break;

​

            sequence.Add(number);

        }

        return sequence;

    }

}