using System;
using System.Linq;
namespace _07._Knight_Game
{
    class Program
    {
        static void Main(string[] args)
        {
            int dimensions = int.Parse(Console.ReadLine());

            char[,] board = new char[dimensions, dimensions];

            for (int row = 0; row < board.GetLength(0); row++)
            {
                string elementsOfMatrix = Console.ReadLine();

                for (int col = 0; col < board.GetLength(1); col++)
                {
                    board[row, col] = elementsOfMatrix[col];
                }
            }
            //end of insertion;

            int removedHorses = 0;

            for (int row = 0; row < board.GetLength(0); row++)
            {
                for (int col = 0; col < board.GetLength(1); col++)
                {
                    if (board[row, col] == 'K')
                    {
                        if (row - 2 < board.GetLength(0) && col - 1 < board.GetLength(1)&&row-2>=0&&col-2>=0
                            && board[row - 2, col - 1] == 'K')
                        {
                            removedHorses++;
                            board[row, col] = '0';
                        }
                        if (row - 2 < board.GetLength(0) && col +1 < board.GetLength(1) && row - 2 >= 0 && col +1 >= 0
                            && board[row - 2, col +1] == 'K')
                        {
                            removedHorses++;
                            board[row, col] = '0';
                        }
                        if (row - 1 < board.GetLength(0) && col +2 < board.GetLength(1) && row - 1 >= 0 && col + 2 >= 0
                            && board[row - 1, col +2] == 'K')
                        {
                            removedHorses++;
                            board[row, col] = '0';
                        }
                        if (row +1 < board.GetLength(0) && col +2 < board.GetLength(1) && row +1 >= 0 && col +2 >= 0
                            && board[row +1, col +2] == 'K')
                        {
                            removedHorses++;
                            board[row, col] = '0';
                        }
                        //4 completed

                        if (row + 2 < board.GetLength(0) && col + 1 < board.GetLength(1) && row + 2 >= 0 && col +1 >= 0
                                && board[row +2, col +1] == 'K')
                        {
                            removedHorses++;
                            board[row, col] = '0';
                        }
                        if (row +2 < board.GetLength(0) && col - 1 < board.GetLength(1) && row + 2 >= 0 && col -1 >= 0
                            && board[row + 2, col - 1] == 'K')
                        {
                            removedHorses++;
                            board[row, col] = '0';
                        }
                        if (row +1 < board.GetLength(0) && col - 2 < board.GetLength(1) && row + 1 >= 0 && col - 2 >= 0
                            && board[row +1, col - 2] == 'K')
                        {
                            removedHorses++;
                            board[row, col] = '0';
                        }
                        if (row - 1 < board.GetLength(0) && col - 2 < board.GetLength(1) && row - 1 >= 0 && col - 2 >= 0
                            && board[row - 1, col - 2] == 'K')
                        {
                            removedHorses++;
                            board[row, col] = '0';
                        }
                    }
                }
            }
            Console.WriteLine(removedHorses);
        }
    }
}