using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApp1
{
class Program
{
int[] a = { 16, 6, 7, 10, 9, 16, 10, 8, 8, 9, 6, 6 };
int[] b = { 5, 10, 8, 15, 16, 15, 8, 16, 8, 16, 9, 17, 8, 17, 10, 8, 9, 18, 5, 15, 10, 9, 8, 9, 15, 18, 7, 8, 16, 6 };
int[] c = { 6, 7, 18, 9, 5, 16, 9, 15, 18, 8, 9, 5 };
int[] d = { 7, 7, 9, 12, 8, 7, 13, 5, 14, 5, 9, 17, 5, 7, 12, 8, 8, 6, 19, 6, 8, 16, 10, 6, 12, 9, 6, 7, 12, 5, 9, 8, 7, 8, 15, 9, 16, 8, 8, 19, 12, 6, 8, 7, 5, 15, 6, 16, 15, 7, 9, 12, 10, 7, 15, 6, 5, 14, 14, 9 };
String[] m = { "23to01", "01to03", "03to05", "05to07", "07to09", "09to11", "11to13", "13to15", "15to17", "17to19", "19to21", "21to23" };
static void Main(string[] args)
{
Program pro = new Program();
for (int ia = 0; ia < pro.a.Length; ia++)
{
for (int ib = 0; ib < pro.b.Length; ib++)
{
for(int ic = 0; ic < pro.c.Length; ic++)
{
for (int id = 0; id <pro.d.Length; id++)
{
if (34 == (pro.a[ia] + pro.b[ib] + pro.c[ic] + pro.d[id]))
{
int Years = id + 60 + 1900;
int Month = ic + 1;
int Days = ib + 1;
if (Years <= 1983 || Years >= 2007)
continue;
if ((Years == 1989) || (Years == 2004))
{
continue;
}
if ((Years == 1989 || Years == 2004) && Days == 31)
{
continue;
}
if ((Years <= 1994) && Month == 3)
{
continue;
}
if (Years >= 1996 && Month == 9)
{
continue;
}
if ((Years == 1995) && Month == 6)
{
continue;
}
if (Years != 1999 &&
(Month == 1 || Month == 4 || Month == 5 || Month == 7 || Month == 10 || Month == 11 || Month == 12))
{
continue;
}
if ((Years <= 1994) && (Month == 2 || Month == 6 || Month == 8))
{
continue;
}
if ((Years >= 1996) && ((Month == 2) || (Month == 6) || (Month == 8)))
{
continue;
}
if ((Years == 1995) && ((Days > Month + 2) || (Month == Days)))
{
continue;
}
string srets = Years.ToString("D4") + Month.ToString("D2") + Days.ToString("D2");
Console.WriteLine("May be: {0}{1}", srets, pro.m[ia]);
}
}
}
}
}
}
}
}
