Histogram

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

namespace Histogram
{
    class Program
    {
        static void Main(string[] args)
        {
            int input1 = int.Parse(Console.ReadLine());
            double p1 = 0.0;
            double p2 = 0.0;
            double p3 = 0.0;
            double p4 = 0.0;
            double p5 = 0.0;

            for (int i = 0; i < input1; i++)
            {
                double num = double.Parse(Console.ReadLine());

                if (num < 200) p1++;
                else if (num >= 200 && num <= 399) p2++;
                else if (num >= 400 && num <= 599) p3++;
                else if (num >= 600 && num <= 799) p4++;
                else if (num >= 800) p5++;
            }
            double r1 = p1 / input1 * 100;
            double r2 = p2 / input1 * 100;
            double r3 = p3 / input1 * 100;
            double r4 = p4 / input1 * 100;
            double r5 = p5 / input1 * 100;

            Console.WriteLine("{0:F2}%", r1);
            Console.WriteLine("{0:F2}%", r2);
            Console.WriteLine("{0:F2}%", r3);
            Console.WriteLine("{0:F2}%", r4);
            Console.WriteLine("{0:F2}%", r5);
        }
    }
}