using System;

​

namespace _8._One_to_N__not_div_by_3_and_7_

{

    class Program

    {

        static void Main(string[] args)

        {

            Console.Write("Please enter the value of N: ");

            int n = Int32.Parse(Console.ReadLine());

​

            for (int i = 1; i <= n; i++)

            {

                if (i % 3 != 0 && i % 7 != 0)

                {

                    Console.WriteLine(i);

                }

            }

        }

    }

}

// Write a program that prints on the console the numbers from 1 to N, which are not divisible by 3 and 7 simultaneously. The number N should be read from the standard input.