using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication13
{
	class Program
	{
		static int Vstup(ref int cislo)
		{
			int pruchod = 0;
			Console.WriteLine("Zadejte cislo (0=konec)");
			do
			{
				if (pruchod > 0) Console.WriteLine("Nebylo zadano cele cislo.");

				pruchod++;

			} while (!(int.TryParse(Console.ReadLine(), out cislo)));
			return cislo;
		}
		static void Zadat()
		{
			int cislo = 0;
			int pocet = 1;
			int max1 = 0, max2 = 0;
			do
			{
				Vstup(ref cislo);
				if (pocet == 1)
				{
					max1 = cislo;
					max2 = 0;

				}

				if (cislo != 0)
				{
					if (cislo > max1)
					{
						max2 = max1;
						max1 = cislo;
					}
					else if (cislo > max2 && cislo != max1)
					{
						max2 = cislo;
					}
				}
				pocet++;
			} while (cislo != 0);
			if (pocet < 2) Console.WriteLine("Zadejte alespon 2 cisla");
			Console.WriteLine("Druhe nejvyssi cislo v rade je  " + max2);
		}

		static void Main(string[] args)
		{
			char volba = '9';
			do
			{
				Console.Clear();
				if (volba == '1') Zadat();
				Console.WriteLine("1..Zadat ciselnou radu\n-----------------\n9..Konec");
				volba = Console.ReadKey().KeyChar;
			} while (volba != '9');
		}
	}
}