Histogram

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

namespace _06.Histogram
{
    class Program
    {
        static void Main(string[] args)
        {
            double n = double.Parse(Console.ReadLine());
            double counter1 = 0;
            double counter2 = 0;
            double counter3 = 0;
            double counter4 = 0;
            double counter5 = 0;
            for (int i = 0; i < n; i++)
            {
                double num = double.Parse(Console.ReadLine());
                if (num<200)
                {
                    counter1++;
                }
                else if (num >= 200 && num <= 399)
                {
                    counter2++;
                }
                else if (num >= 400 && num <= 599)
                {
                    counter3++;
                }
                else if (num >= 600 && num <= 799)
                {
                    counter4++;
                }
                else
                {
                    counter5++;
                }
            }

            Console.WriteLine("{0:F2}%", counter1 / n * 100);
            Console.WriteLine("{0:F2}%", counter2 / n *100);
            Console.WriteLine("{0:F2}%", counter3 / n * 100);
            Console.WriteLine("{0:F2}%", counter4 / n * 100);
            Console.WriteLine("{0:F2}%", counter5 / n * 100);
        }
    }
}