using System;
using System.Linq;

namespace _11ArrayManipulator
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arrayNumbers = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
            string command = string.Empty;

            while ((command = Console.ReadLine()) != "end")
            {
                string[] tokens = command.Split(' ');
                switch (command)
                {
                    case "exchange":
                        Exchange(arrayNumbers);
                        break;
                    case "max even":
                        MaxEven();
                        break;
                    case "max odd":
                        MaxOdd();
                        break;
                    case "min even":
                        MinEven();
                        break;
                    case "min odd":
                        MinOdd();
                        break;
                }

                if (command.StartsWith("first") && command.EndsWith("even")) // count чета в метода долу
                {
                    FirstEven(int.Parse(tokens[1]));
                }
                else if (command.StartsWith("first") && command.EndsWith("odd")) // count чета в метода долу
                {
                    FirstOdd(int.Parse(tokens[1]));
                }
                else if (command.StartsWith("last") && command.EndsWith("even")) // count чета в метода долу
                {
                    LastEven(int.Parse(tokens[1]));
                }
                else if (command.StartsWith("last") && command.EndsWith("odd")) // count чета в метода долу
                {
                    LastOdd(int.Parse(tokens[1]));
                }
            }

        }

        private static void Exchange(int[] arrayNumbers)
        {
            int index = int.Parse(Console.ReadLine());
            int[] splittedArray = null;
            for (int i = 0; i < index; i++)
            {
                arrayNumbers[i] = splittedArray[i];
            }
        }

        private static void MaxEven()
        {
            //throw new NotImplementedException();
        }

        private static void MaxOdd()
        {
            //throw new NotImplementedException();
        }

        private static void MinEven()
        {
            //throw new NotImplementedException();
        }

        private static void MinOdd()
        {
            //throw new NotImplementedException();
        }

        private static void FirstEven(int count)
        {
        }

        private static void FirstOdd(int count)
        {

        }

        private static void LastEven(int count)
        {

        }

        private static void LastOdd( int count)
        {

        }
    }
}