using System;

public class Program

{

    public static void Main()

    {

        var a1 = DateTime.Today;

        var a2 = DateTime.Today.AddDays(-30);

        do{

            Console.WriteLine(a2.ToShortDateString());

            a2 = a2.AddDays(1);

        }

        while(a1 >= a2);

    }

}