import java.io.*;
/**
 * @author  yeeku.H.lee kongyeeku@163.com
 * @version  1.0
 * <br>Copyright (C), 2005-2008, yeeku.H.Lee
 * <br>This program is protected by copyright laws.
 * <br>Program Name:
 * <br>Date: 
 */
public class Gobang
{
	//定義一個二維數組來充當棋盤
	private String[][] board;
	//定義棋盤的大小
	private static int BOARD_SIZE = 15;
	public void initBoard()
	{
		//初始化棋盤數組
		board = new String[BOARD_SIZE][BOARD_SIZE];
		//把每個元素賦為"╋"，用于在控制臺畫出棋盤
		for (int i = 0 ; i < BOARD_SIZE ; i++)
		{
			for ( int j = 0 ; j < BOARD_SIZE ; j++)
			{
				board[i][j] = "╋";
			}
		}
	}
	//在控制臺輸出棋盤的方法
	public void printBoard()
	{
		//打印每個數組元素
		for (int i = 0 ; i < BOARD_SIZE ; i++)
		{
			for ( int j = 0 ; j < BOARD_SIZE ; j++)
			{
				//打印數組元素后不換行
				System.out.print(board[i][j]);
			}
			//每打印完一行數組元素后輸出一個換行符
			System.out.print("\n");
		}
	}
    public static void main(String[] args)throws Exception
    {
        Gobang gb = new Gobang();
		gb.initBoard();
		gb.printBoard();
		//這是用于獲取鍵盤輸入的方法
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String inputStr = null;
		//br.readLine()：每當在鍵盤上輸入一行內容按回車，剛輸入的內容將被br讀取到。
		while ((inputStr = br.readLine()) != null)
		{
			try
			{
				//將用戶輸入的字符串以逗號（,）作為分隔符，分隔成2個字符串
				String[] posStrArr = inputStr.split(",");
				//將2個字符串轉換成用戶下棋的座標
				int xPos = Integer.parseInt(posStrArr[0]);
				int yPos = Integer.parseInt(posStrArr[1]);
				//把對應的數組元素賦為"●"。
				if (!gb.board[xPos - 1][yPos - 1].equals("╋"))
				{
					System.out.println("您輸入的座標點已有棋子了，請重新輸入");
					continue;
				}
				gb.board[xPos - 1][yPos - 1] = "●";	
			}
			catch (Exception e)
			{
				System.out.println("您輸入的座標不合法，請重新輸入。下棋座標應以x,y的格式");
				continue;
			}

			gb.printBoard();
			System.out.println("請輸入您下棋的座標，應以x,y的格式：");
		}
    }
}