public static void calc(int g)
        {
            int y = (10000*g + 14780)/3652425;
            int ddd = g - (365*y + y/4 - y/100 + y/400);
            if (ddd < 0)
            {
                y = y - 1;
                ddd = g - (365*y + y/4 - y/100 + y/400);
            }
            int mi = (100*ddd + 52)/3060;
            int mm = (mi + 2)%12 - 1;
            y = y + (mi + 2)/12;
            int dd = ddd - (mi*306 + 5)/10 + 1;
            Console.WriteLine(y + " " + mm + " " + dd);
            Console.ReadLine();
        }