NumbersNotDivisibleByThreeAndSeven

using System;

//Write a program that enters from the console a positive integer n and prints all the numbers from 1 to n
//not divisible by 3 and 7, on a single line, separated by a space

    class NumbersNotDivisibleByThreeAndSeven
    {
        static void Main()
        {
            Console.Write("N = ");
            int n = int.Parse(Console.ReadLine());
            for (int i = 1; i <= n; i++)
            {
                if (!(i % 7 == 0 || i % 3 == 0))
                {
                    Console.Write("{0} ", i);
                }
            }
            Console.WriteLine();
        }
    }