using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Soap;
using System.IO;

namespace _2033
{
    class Device
    {
        public string Friend { get; set; }
        public string Name { get; set; }
        public int Cost { get; set; }
    }

    class Program
    {
        static void Main()
        {

            List<Device> objList = new List<Device>();
            for (int i = 0; i < 6; i++)
                objList.Add(new Device { Friend = Console.ReadLine(), Name = Console.ReadLine(),
                    Cost = int.Parse(Console.ReadLine()) });

            // 1. Находим девайс, который находится у большинства парней
            var query = from list in objList
                        group list by list.Name into grouping
                        orderby grouping.Count () descending
                        where
                        grouping.Count()>=2
                        select new {grouping.Key,PRCNT= grouping.Count ()} ;

            string Device = "";

            int prev_cnt = 0;
            bool isFind = true;
            foreach (var item in query)
            {
                if (prev_cnt != 0 && item.PRCNT == prev_cnt)
                {
                    isFind = false;
                    break;
                }
                else if (prev_cnt >= 2 && item.PRCNT<prev_cnt)
                    break;

                Device = item.Key;
                prev_cnt = item.PRCNT;
            }

            if (Device != "" && isFind)
            {
                Console.WriteLine(Device);
                return;
            }

            //Если таких устройств несколько , то находим самое дешевое из них

            var query2 = objList.OrderBy(dev => dev.Cost);
            foreach (var item in query2)
            {
                Console.WriteLine(item.Name);
                return;
            }
        }
    }
}