using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        //Program p = new Program();

        //var tab = new int[] { 8,6,3,9,1,10,4,2,5,7 };

        bool visuelTableau = true;      

        char column = 'A';

        bool titleColumn = true;

        string ligne;

        string data = "  ";

        string[,] board = new string[8, 8];

        string firstLine = "";

        string interline = "";

        for (int i = 0; i < 8; i++){        

            int numLigne = i + 1;

            ligne = numLigne + " ";

            if(titleColumn == true){

                for (int k = 0; k < 8; k++){

                        if(k == 0){firstLine += "    ";}

                        firstLine += column + "   ";

                        column++;

                }

                titleColumn = false;

                Console.WriteLine(firstLine);               

            }

            if(i == 0){

                interline = "  +---+---+---+---+---+---+---+---+";

                Console.WriteLine(interline);

            }

            for (int j = 0; j < 8; j++){

                if(j == 0){

                    ligne += "|";

                }

                board[i, j] = data + " |";                      

                ligne += board[i, j];    

            }

            visuelTableau = !visuelTableau;

            Console.WriteLine(ligne);

            interline = "  +---+---+---+---+---+---+---+---+";

            Console.WriteLine(interline);           

        }

        //Console.ReadLine();

    }

}