Fourth

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

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

            int busCargoInTones = 0;
            int truckCargoInTones = 0;
            int trainCargoInTones = 0;

            for (int currInput = 0; currInput < numberOfInputs; currInput++)
            {
                int cargoTones = int.Parse(Console.ReadLine());

                if (cargoTones <= 3)
                {
                    busCargoInTones += cargoTones;
                }
                else if (cargoTones <= 11)
                {
                    truckCargoInTones += cargoTones;
                }
                else if (cargoTones >= 12)
                {
                    trainCargoInTones += cargoTones;
                }
            }

            int totalTones = busCargoInTones + truckCargoInTones + trainCargoInTones;

            double averagePerTone = ((busCargoInTones * 200.0) +
                                    (truckCargoInTones * 175.0) +
                                    (trainCargoInTones * 120.0)) /
                                    totalTones;

            double percentOfCargoForBus = (busCargoInTones / (double)totalTones) * 100;
            double percentOfCargoForTruck = (truckCargoInTones / (double)totalTones) * 100;
            double percentOfCargoForTrain = (trainCargoInTones / (double)totalTones) * 100;

            Console.WriteLine($"{averagePerTone:f2}");
            Console.WriteLine($"{percentOfCargoForBus:f2}%");
            Console.WriteLine($"{percentOfCargoForTruck:f2}%");
            Console.WriteLine($"{percentOfCargoForTrain:f2}%");
        }
    }
}