namespace AutoRepairAndService
{
    using System;
    using System.Collections;
    using System.Collections.Generic;
    using System.Linq;

    public class StartUp
    {
        public static void Main(string[] args)
        {
            string[] carModels = Console.ReadLine()
                .Split(" ", StringSplitOptions.RemoveEmptyEntries);

            Queue<string> queueOfCars = new Queue<string>(carModels);
            Stack<string> servedCars = new Stack<string>();

            string input = Console.ReadLine();

            while (input != "end")
            {
                if (input == "Service" && queueOfCars.Count > 0)
                {
                    string currentCar = queueOfCars.Dequeue();
                    servedCars.Push(currentCar);
                    Console.WriteLine($"Vehicle {currentCar} got served.");
                }
                else if (input.Contains("CarInfo"))
                {
                    string carName = input.Split('-'[1]);
                }

                input = Console.ReadLine();
            }




        }
    }
}