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

namespace Pirma_programa
{
    class Program
    {
        static void Main(string[] args) //for ciklas su sandauga
        {

            var suma = 1;

            for (int i = 0; i < 100; i++)
            {
                if (i % 7 == 0)
                {
                    suma *= i;
                }
                else suma = suma *1;
            }

            Console.WriteLine(suma);
            }
        }
    }