1.Ages - Basic

using System;


namespace _1._0
    {
        class Program
        {
            static void Main(string[] args)
            {
                int ages = int.Parse(Console.ReadLine());

                if (ages <= 2 && ages >= 0)
                {
                    Console.WriteLine("baby");
                }
                else if (ages >= 3 && ages <= 13)
                {
                    Console.WriteLine("child");

                }
                else if (ages >= 14 && ages <= 19)
                {
                    Console.WriteLine("teenager");
                }
                else if (ages >= 20 && ages <= 65)
                {
                    Console.WriteLine("adult");
                }
                else if (ages >= 66)
                {
                    Console.WriteLine("elder");
                }
            }
        }
    }