using System;

public class Program

{

    public static void Main()

    {

        int n = 10;

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

            //if(i % 3 != 0 || i % 7 != 0) {

            //Console.WriteLine(i);

            //}

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

                Console.WriteLine(i);

            }

        }

    }

}