using System;

public class Program

{

    public static void Main()

    {

        int n = 1;

        int d = 7;

        int a = 1;

        int g = 1;

        do {

            g=a+((n-1)*d);

            Console.WriteLine(g);

            n++;

        } while (g < 50);

        Console.ReadLine();

    }

}