using System;
public class Program
{
public static void Main()
var x = new DateTime(2017, 04, 1);
Console.WriteLine(x);
Console.WriteLine(x.AddDays(1));
Console.WriteLine(x.AddDays(2));
var y = new DateTime(2017, 05, 1);
Console.WriteLine(y);
Console.WriteLine(y.AddDays(1));
Console.WriteLine(y.AddDays(2));
}