using System;

namespace zad_2
{
    class Program
    {
        static void Main(string[] args)
        {
            int count = 0;

            while (true)
            {
                string input = Console.ReadLine();
                if (input == "end")
                {
                    break;
                }
                int number = int.Parse(input);
                if (number % 2 != 0 && number % 7 == 0)
                {
                    count++;
                }
            }


                Console.WriteLine(count);
                Console.ReadKey();
        }
    }
}