using System;

public class Program

{

    public static void Main()

    {

        double weight,sum=0;

        int count1=0,count2=0;

        Console.WriteLine("weight to end press 0");

        weight=double.Parse(Console.ReadLine());

        while(weight!=0)

        {

         if(weight>5)

         {

          Console.WriteLine("כבדה");

          Console.WriteLine(2*((weight-5)/1)+20+" final price");

          sum=sum+(weight-5);

          count2++;

         }

         else

         {

             Console.WriteLine("no 20 shekels");

             count1++;

         }

        Console.WriteLine("price to end press 0");

        weight=double.Parse(Console.ReadLine());

        }

        Console.WriteLine(count1+" normal");

        Console.WriteLine((double)sum/count2);

    }

}