using System;

using System.Linq;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

      /*RacionalNumber one = new RacionalNumber();

        for(int i = 0; i<3; i++)

        {

            int numerator = int.Parse(Console.ReadLine());

            int denumerator = int.Parse(Console.ReadLine());

            one.PrintNumLines(numerator, denumerator);

        }*/

        /*RacionalNumber two = new RacionalNumber();

        List<int> nums = Console.ReadLine().Split(' ').Select(int.Parse).ToList(); 

        if(nums.Count()%2!=0)

        {

            throw new Exception("Въведи четен брой числа!");

        }

        int pos = 0;

        while(pos<nums.Count)

        {

            int numerator = nums[pos];

            pos++;

            int denumerator = nums[pos];

            pos++;

            two.PrintNumLine(numerator, denumerator);

        }*/

        List<int> nums = Console.ReadLine().Split(' ').Select(int.Parse).ToList();

        EvenNumber first = new EvenNumber(nums);

        Console.WriteLine("Even without lambda:");

        first.Print();

        Console.WriteLine("Even with lambda:");

        first.CheckLambda(nums);

        Console.WriteLine("Odd: ");

        OddNumber second = new OddNumber(nums);

        second.Print();

    }

    public class RacionalNumber

    {

        private int numerator;

        private int denumerator;

        public int Numerator

        {

            set{numerator  = value;}

            get{return numerator;}

        }

        public int Denumerator

        {

            set{denumerator = value;}

            get{return denumerator;}

        }

        public RacionalNumber()

        {

            this.numerator = Numerator;

            this.denumerator = Denumerator;

        }

        public void PrintNumLines(int numerator, int denumerator)

        {

            Console.WriteLine("{0}/{1}", numerator, denumerator);

        }

        public void PrintNumLine(int numerator, int denumerator)

        {

            Console.Write("{0}/{1}; ", numerator, denumerator);

        }

    }

    public class EvenNumber

    {

        private int num;

        private List<int>nums = new List<int> {};

        public int Num

        {

            set{num = value;}

            get{return num;}

        }

        public EvenNumber(List<int> numsE)

        {

            foreach(var one in numsE)

            {

                Check(one);

            }

        }

        public void Check(int num)

        {

            if(num % 2 == 0)

            {

                nums.Add(num);

            }

        }

        public void Print()

        {

            Console.WriteLine(String.Join(", ", nums));

        }

        public void CheckLambda(List<int> lambdaNums)

        {

            lambdaNums = lambdaNums.Where(x => x%2 == 0).ToList();

            Console.WriteLine(String.Join(", ", lambdaNums));

        }

    }

    public class OddNumber

    {

        private int num;

        private List<int>nums = new List<int>{};

        public int Num

        {

            set{num = value;}

            get{return num;}

        }

        public OddNumber(List<int>numsE)

        {

            foreach(var one in numsE)

            {

                Check(one);

            }

        }

        public void Check(int number)

        {

            if(number % 2 != 0)

            {

                nums.Add(number);

            }

        }

        public void Print()

        {

            Console.WriteLine(String.Join(", ", nums));

        }

    }

}