Histogram

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

namespace Histogram
{
    class Histogram
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int counter = 0;
            int counter1 = 0;
            int counter2 = 0;
            int counter3 = 0;
            int counter4 = 0;
            for (int i = 0; i < n; i++)
            {
                int inputnumber = int.Parse(Console.ReadLine());
                if (inputnumber < 200)
                {
                    counter++;

                }
                else if (inputnumber < 400)
                {
                    counter1++;

                }
                else if(inputnumber < 600)
                {
                    counter2++;

                }
                else if(inputnumber < 800)
                {
                    counter3++;

                }
                else
                {
                    counter4++;

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