def count_reaches(N, board):
    dx = [-1, -1, -1, 0, 0, 1, 1, 1]
    dy = [-1, 0, 1, -1, 1, -1, 0, 1]
    
    def is_valid(x, y):
        return 0 <= x < N and 0 <= y < N
    
    def check_direction(x, y, dx, dy):
        cnt_A, cnt_dot = 0, 0
        for i in range(N):
            nx, ny = x + i*dx, y + i*dy
            if not is_valid(nx, ny):
                return False
            if board[nx][ny] == 'A':
                cnt_A += 1
            elif board[nx][ny] == '.':
                cnt_dot += 1
        return cnt_A == N-1 and cnt_dot == 1
    
    cnt_reaches = 0
    for i in range(N):
        for j in range(N):
            if board[i][j] != 'A':
                continue
            for dir in range(8):
                cnt_reaches += check_direction(i, j, dx[dir], dy[dir])
    return cnt_reaches

N = int(input())

board = []
for _ in range(N):
    row = input().strip()
    board.append(row)

print(count_reaches(N, board))