trekking mania

using System;

namespace exampreparation
{
    class exam
    {
        static void Main(string[] args)
        {
            int groups = int.Parse(Console.ReadLine());
            int musala = 0;
            int monblan = 0;
            int kilimandjaro = 0;
            int k2 = 0;
            int everest = 0;
            double sumPeople = 0.0;

            for (int i = 0; i < groups; i++)
            {
                int groupPeople = int.Parse(Console.ReadLine());

                if (groupPeople <= 5)
                {
                    musala += groupPeople;
                }
                else if (groupPeople <= 12)
                {
                    monblan += groupPeople;
                }
                else if (groupPeople <= 25)
                {
                    kilimandjaro+= groupPeople;
                }
                else if (groupPeople <= 40)
                {
                    k2+= groupPeople;
                }
                else
                {
                    everest+= groupPeople;
                }

                sumPeople += groupPeople;
            }

            double percentMusala = (musala * 1.0 / sumPeople )* 100.0;
            double percentMonblan = (monblan * 1.0 / sumPeople) * 100.0;
            double percentKilim = (kilimandjaro * 1.0 / sumPeople) * 100.0;
            double percentK2 = (k2 * 1.0 / sumPeople) * 100.0;
            double percentEverest = (everest *1.0 / sumPeople) * 100.0;

            Console.WriteLine($"{percentMusala:f2}%");
            Console.WriteLine($"{percentMonblan:f2}%");
            Console.WriteLine($"{percentKilim:F2}%");
            Console.WriteLine($"{percentK2:F2}%");
            Console.WriteLine($"{percentEverest:F2}%");
        }
    }
}