using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp21
{
    class Program
    {
        static void Main(string[] args)
        {
            int numberOfMaxBadGrades = int.Parse(Console.ReadLine());
            int badGrade = 0;
            int numberOfProblems = 0;
            double SumOfGrades = 0;
            string lastTask = null;

            while (true)
            {
                string taskName = Console.ReadLine();

                double averageGrade = SumOfGrades * 1.0 / numberOfProblems;


                if (taskName == "Enough")
                {

                    Console.WriteLine($"Average score: {averageGrade:F2}");
                    Console.WriteLine($"Number of problems: {numberOfProblems}");
                    Console.WriteLine($"Last problem: {lastTask}");

                    break;
                }
                lastTask = taskName;

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

                if (grade > 4)
                {
                    SumOfGrades += grade;
                    numberOfProblems++;
                }

                else if (grade <= 4 && badGrade < numberOfMaxBadGrades)
                {
                    SumOfGrades += grade;
                    numberOfProblems++;
                    badGrade++;
                }

                if (badGrade == numberOfMaxBadGrades)
                {
                    Console.WriteLine($"You need a break, {badGrade} poor grades.");
                    break;
                }
            }
        }
    }
}