zadacha 1 23.02.2020.

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

namespace ConsoleApp3
{
    class Program
    {
        static void Main(string[] args)
        {
            int br = 0;
            int i, j, vs;
            int[,] array = new int[4, 4];
            for (i = 0; i < 4; i++)
                for (j = 0; j < 4; j++)
                    array[i, j] = int.Parse(Console.ReadLine());
            for (i = 0; i < 4; i++)
            //1
            {
                for (j = 0; j < 4; j++)
                    Console.Write(array[i, j] + " ");
                Console.WriteLine();
            }
            //2
            for (i = 0; i < 4; i++)
            {
                for (j = 0; j < 4; j++)
                {
                    if (array[i, j] % 2 == 0)
                        br++;
                }
            }
            Console.WriteLine("broqt na chetnite e " + br);
            //3
            for (i = 0; i < 4; i++)
            {
                for (j = 0; j < 4; j++)
                {
                    if (array[i, j] > -5 && array[i, j] < 12)
                        Console.Write(array[i, j] + " ");
                }
            }
            Console.WriteLine("diagonal2: ");
            //4
            for (i = 0; i < 4; i++)
            {
                    Console.Write( array[i, 3 - i] + " ");
            }
        }
    }
}