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

namespace ConsoleApp1
{
    class Program
    {
        static int Suma(int[] dane)
        {
            int suma = 0;

            for (int i = 0; i < dane.Length; i++)
            { suma += dane[i];
            }

            return suma;
        }
        static void Main(string[] args)
        {
            //int[] dane = new int[5];
            //dane[0] = 12;
            //dane[1] = 34;
            //dane[2] = -56;
            //dane[3] = -78;
            //dane[4] = 90;

            //foreach (var x in dane)
            //{
            //    Console.WriteLine(x);
            //}

            //for (int i = 0; i < dane.Length; i++)
            //{
            //    Console.WriteLine(dane[i]);

            //}
            //Console.WriteLine("Suma danych to: " + Suma(dane));
            //Console.ReadKey();

            //int[,] macierz = new int[3, 3];

            //foreach (var x in macierz)
            //{
            //    Console.SetCursorPosition(x % 3, x / 3);
            //    Console.WriteLine(x + "  ");
            //}



            uczen uczen1;
            Console.WriteLine("Podaj dane:");

            Console.Write("Imie      :");
            uczen1.imie = Console.ReadLine();

            Console.Write("Nazwisko  :");
            uczen1.nazwisko = Console.ReadLine();

            Console.Write("E-mail    :");
            uczen1.email = Console.ReadLine();

            Console.Write("Wiek      :");
            uczen1.wiek = int.Parse(Console.ReadLine());

            Console.WriteLine(uczen1.imie + "  " + uczen1.nazwisko);

            uczen[] klasa1m = new uczen[25];

            klasa1m[4].imie = "";

            Console.ReadKey();

        }
      
    }
}






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

namespace ConsoleApp1
{
    struct uczen
    {
       public string imie, nazwisko, email;
        public int wiek;
    }
}