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

namespace _02.SoftUniWaterSupplies
{
    class SoftuniWatterSupplies
    {
        static void Main(string[] args)
        {
            double amountOfWater = int.Parse(Console.ReadLine());
            List<double> bottles = Console.ReadLine().Split().Select(double.Parse).ToList();
            double bottlesCapacity = double.Parse(Console.ReadLine());
            int bottlesLeft = 0;
            double neededL = 0;
            List<int> index = new List<int>();

            if (amountOfWater%2==0)
            {
                for (int i = 0; i < bottles.Count; i++)
                {
                    while (bottles[i] != bottlesCapacity && amountOfWater != 0)
                    {
                        double diff = bottlesCapacity - bottles[i];
                        if (diff<=amountOfWater)
                        {
                            bottles[i] += diff;
                           amountOfWater -= diff;
                        }
                    }
                    if (amountOfWater==0)
                    {
                        break;
                    }
                }
                List<double> check = bottles.Where(a => a == bottlesCapacity).ToList();

                if (check.Count== bottles.Count)
                {
                    Console.WriteLine("Enough water!");
                    Console.WriteLine($"Water left: {amountOfWater}l.");
                }
                else
                {
                    Console.WriteLine("We need more water!");
                    for (int i = 0; i < bottles.Count; i++)
                    {
                        if (bottles[i]!=bottlesCapacity)
                        {
                            index.Add(i);
                            bottlesLeft++;
                           neededL += bottlesCapacity - bottles[i];
                        }
                    }
                    Console.WriteLine($"Bottles left: {bottlesLeft}");
                    Console.WriteLine($"With indexes: {string.Join(", ",index)}");
                    Console.WriteLine($"We need {neededL} more liters!");
                }

            }
            else
            {
                for (int i = bottles.Count-1; i >=0 ; i--)
                {
                    while (bottles[i] != bottlesCapacity && amountOfWater != 0)
                    {
                        double diff = bottlesCapacity - bottles[i];
                        if (diff <= amountOfWater)
                        {
                            bottles[i] += diff;
                            amountOfWater -= diff;
                        }
                    }
                    if (amountOfWater == 0)
                    {
                        break;
                    }
                }
                List<double> check = bottles.Where(a => a == bottlesCapacity).ToList();

                if (check.Count == bottles.Count)
                {
                    Console.WriteLine("Enough water!");
                    Console.WriteLine($"Water left: {amountOfWater}l.");
                }
                else
                {
                    Console.WriteLine("We need more water!");
                    for (int i = bottles.Count-1; i >=0; i--)
                    {
                        if (bottles[i] != bottlesCapacity)
                        {
                            index.Add(i);
                            bottlesLeft++;
                            neededL += bottlesCapacity - bottles[i];
                        }
                    }
                    Console.WriteLine($"Bottles left: {bottlesLeft}");
                    Console.WriteLine($"With indexes: {string.Join(", ", index)}");
                    Console.WriteLine($"We need {neededL} more liters!");
                }
            }

        }
    }
}