import pygame

class Board:
    # создание поля
    def __init__(self, width, height):
        self.width = width
        self.height = height
        self.board = [[0] * width for _ in range(height)]
        # значения по умолчанию
        self.left = 10
        self.top = 10
        self.cell_size = 30

    # настройка внешнего вида
    def set_view(self, left, top, cell_size):
        self.left = left
        self.top = top
        self.cell_size = cell_size

    def render(self, w, h, screen):
        pygame.draw.line(screen, pygame.Color("white"), (self.left, self.top), (self.top,  h * self.cell_size +
                                                                                self.left))
        pygame.draw.line(screen, pygame.Color("white"), (self.left, self.top), (self.top + w * self.cell_size,
                                                                                self.left))
        pygame.draw.line(screen, pygame.Color("white"), (self.top, h * self.cell_size + self.left),
                         (self.top + w * self.cell_size, self.left + h * self.cell_size))
        pygame.draw.line(screen, pygame.Color("white"), (self.top + w * self.cell_size, self.left),
                         (self.top + w * self.cell_size, self.left + h * self.cell_size))

        for i in range(1, w):
            pygame.draw.line(screen, pygame.Color("white"), (self.left + i * self.cell_size, self.top),
                             (self.left + i * self.cell_size, self.top + h * self.cell_size))

        for i in range(1, h):
            pygame.draw.line(screen, pygame.Color("white"), (self.left, self.top + i * self.cell_size),
                             (self.left + w * self.cell_size, self.top + i * self.cell_size))



if __name__ == '__main__':
    w, h = map(int, input().split())
    pygame.init()
    size = width, height =  1200, 1000
    screen = pygame.display.set_mode(size)
    board = Board(width, height)
    running = True
    while running:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False
        screen.fill((0, 0, 0))
        board.render(w, h, screen)
        pygame.display.flip()