Histogram

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

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

            // count numbers

            int p1 = 0; // <200
            int p2 = 0; // >=200 <=399
            int p3 = 0; // >=400 <=599
            int p4 = 0; // >=600 <=799
            int p5 = 0; // >=800

            for (int i = 0; i < n; i++)
            {
                int input = int.Parse(Console.ReadLine());

                if (input < 200)
                {
                    p1++;
                }
                else if (input >= 200 && input <= 399)
                {
                    p2++;
                }
                else if (input >= 400 && input <= 599)
                {
                    p3++;
                }
                else if (input >= 600 && input <= 799)
                {
                    p4++;
                }
                else
                {
                    p5++;
                }
            }

            // calculate percentage

            int pSum = p1 + p2 + p3 + p4 + p5;

            double p1Percent = 0.0;
            double p2Percent = 0.0;
            double p3Percent = 0.0;
            double p4Percent = 0.0;
            double p5Percent = 0.0;

            if (p1 > 0)
            {
                p1Percent = 1.00 * p1 / pSum * 100;
            }

            if (p2 > 0)
            {
                p2Percent = 1.00 * p2 / pSum * 100;
            }

            if (p3 > 0)
            {
                p3Percent = 1.00 * p3 / pSum * 100;
            }

            if (p4 > 0)
            {
                p4Percent = 1.00 * p4 / pSum * 100;
            }

            if (p5 > 0)
            {
                p5Percent = 1.00 * p5 / pSum * 100;
            }


            // print

            Console.WriteLine($"{p1Percent:f2}%");
            Console.WriteLine($"{p2Percent:f2}%");
            Console.WriteLine($"{p3Percent:f2}%");
            Console.WriteLine($"{p4Percent:f2}%");
            Console.WriteLine($"{p5Percent:f2}%");

        }
    }
}