using System;
using System.Collections.Generic;
using static System.Console;

namespace ConsoleApp11
{
    class Program
    {
        static void Main(string[] args)
        {
            Random r = new Random();

            List<int> marks = new List<int>() { };

            const int maxMark = 10;
            byte students = Convert.ToByte(ReadLine());
            bool more10 = false;
            byte more5 = 0;
            bool next = students <= 1 || students >= 30 ? true : false;

            if (!next)
            {
                for (int i = 0; i < students; i++)
                {
                    marks.Add(r.Next(1, 10));
                    if(marks[i] >= maxMark/2)
                    {
                        more5++;
                     }
                    more10 = marks[i] == 10 ? true : false;
                }

                if(!more10)
                {
                    Console.WriteLine(more5);
                    Console.WriteLine("No");
                } else
                {
                    Console.WriteLine(more5);
                    Console.WriteLine("Yes");
                }

            }
            ReadLine();


        }
    }
}