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

namespace ConsoleApp1
{
    class Program
    {
        static uint Maciek_1(uint a, uint b)
        {
            while (a != b)

                if (a > b)
                    a -= b;
                else
                    b -= a;
                return a;


        }

        static void Maciek_2()
        {
            Console.BackgroundColor = ConsoleColor.Blue;
            Console.ForegroundColor = ConsoleColor.Yellow;
            Console.Clear();
        }

        static uint Maciek_A(string Komunikat)
        {
            Console.WriteLine(Komunikat);
            return uint.Parse(Console.ReadLine());

        }
        static void Main(string[] args)
        {

            Maciek_2();

            uint a = Maciek_A()("Podaj a.");

            uint b = Maciek_A()("Podaj b.");


            Console.WriteLine("NWD  (" + a +"," + b + ")wynosi: "+ Maciek_1(a, b));


            Console.ReadKey();
        }
    }
}