using System;
using System.Collections.Generic;

namespace ConsoleApp2
{
    class Program
    {
        static Cell[,] map = new Cell[10, 10];
        static List<Cell> ClosedList = new List<Cell>();
        static void Main(string[] args)
        {   int start_x = int.Parse(Console.ReadLine());
            int start_y = int.Parse(Console.ReadLine());
            int end_x = int.Parse(Console.ReadLine());
            int end_y = int.Parse(Console.ReadLine());
            Cell start_cell = map[start_x, start_y];
            Cell end_cell = map[end_x, end_y];
            for (int i = 0; i < 10; i++)
            {
                for (int j = 0; j < 10; j++)
                {
                    map[j, i] = new Cell('#', ConsoleColor.White);
                    Cell k = map[j, i];
                    k.H = Math.Abs(j - end_x) + Math.Abs(i - end_y);
                }
            }
            Cell[] er = GetNearby(9, 9);
            foreach (var u in er)
             {
             u.IsLocked = true;
             }
            //PutBlocks(3);
            Render();
            Console.ReadLine();
        }
        static void Render()
        {
            for (int i = 0; i < 10; i++)
            {
                for (int j = 0; j < 10; j++)
                {
                    Cell cell = map[j, i];
                    Console.SetCursorPosition(j, i);
                    if (cell.IsLocked)
                    {
                        Console.ForegroundColor = ConsoleColor.Red;
                    }
                    else if (cell.IsPath)
                    {
                        Console.ForegroundColor = ConsoleColor.Yellow;
                    }
                    else
                    {
                        Console.ForegroundColor = cell.Color;
                    }

                    Console.Write(cell.Symbol);

                }
            }
        }
        static void FindPath(int x1, int y1, int x2, int y2)
        {
            List<Cell> OpenList = new List<Cell>(GetNearby(x1,y1));
            List<Cell> ClosedList = new List<Cell>();
            OpenList.AddRange(GetNearby(x1, y1));
            OpenList.Remove(map[x1, y1]);
            ClosedList.Add(map[x1, y1]);
            Cell start = map[x1, y1];
            start.IsPath= true;
        }
        static void PutBlocks (int number)
        {
            Random rand = new Random();
            int x = rand.Next(4, 7);
            int y = rand.Next(2, 6);
            Cell k = map[x,y];
            k.IsLocked = true;
            for (int i = 0; i < number; i++)
            {
                Cell ki = map[x, y + i];
                ki.IsLocked = true;
            }
        }
        static Cell[] GetNearby(int x , int y)
        {

                List<Cell> NearbyCell = new List<Cell>();
                int xi = 0, yi = 0;
            Cell StartPoint = map[x, y];
            if (StartPoint.IsLocked)
            {
                Console.WriteLine("не та точка");
            }
            else
            {
                for (xi = x - 1; xi <= x + 1; xi++)
                {
                    for (yi = y - 1; yi <= y + 1; yi++)
                    {
                        if (xi < 0 || yi < 0 || xi > 9 || yi > 9)
                        {
                            continue;
                        }
                        else
                        {
                            Cell k = map[xi, yi];

                            if (k.IsLocked == false)
                            {
                                k = map[xi, yi];
                                k.Parent = map[x, y];
                                NearbyCell.Add(k);
                            }
                        }

                    }
                }
            }
         return NearbyCell.ToArray();
        }
    }
    class Cell
    {
        public int F, G, H;
        public char Symbol = '@';
        public ConsoleColor Color;
        public bool IsLocked = false;
        public bool IsPath = false;
        public Cell Parent;

        public Cell(char symbol, ConsoleColor color)
        {
            Symbol = symbol;
            Color = color;
        }
    }
}