using System;

public class Program

{

    public static void Main()

    {

        int sum = 0;

        for (int i=7;i<=77;i++)

        {

            if(i%7 == 0){

                Console.Write($"{i},");

                sum++;

            }

        }

        Console.WriteLine($"\nTveri qanaky = {sum}");

    }

}