using System;

public class Program

{

    public static void Main()

    {

        var currentDate = DateTime.Now.AddMonths(1);

        var startDate = DateTime.Now.AddYears(-1);

        for (var date=startDate; date.Year != currentDate.Year || date.Month != currentDate.Month; date=date.AddMonths(1)) {

            Console.WriteLine("year: {0}, month: {1}", date.Year, date.Month);

        }

    }

}