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

namespace Functions
{
    class Program
    {
        static double check(double goodDiameter, int amount)
        {
            int good=0;
               for (int i = 0; i < amount; i++)
            {
                Console.WriteLine("Enter made diameter");
                double actualDiameter = double.Parse(Console.ReadLine());
                if (goodDiameter >= actualDiameter)
                   if ((goodDiameter - actualDiameter) <= 1)
                      good++;
                if(actualDiameter>=goodDiameter)
                   if((actualDiameter-goodDiameter) <= 1)
                     good++;
            }
            return good;
        }
        static void Main(string[] args)
        {
            for (int a = 0; a < 50; a++)
            {
                Console.WriteLine("Enter standard diameter:");
                double goodDiameter = double.Parse(Console.ReadLine());
                Console.WriteLine("Enter amount made:");
                int amount = int.Parse(Console.ReadLine());
                check(goodDiameter, amount);
                Console.WriteLine(check(goodDiameter, amount));

            }
        }
    }
}