a = int(input()) b = (a - 1) // 2 c = 1 for i in range(a // 2): print(' ' * b + '*' * (a - 2 * b) + ' ' * b) b -= 1 print('*' * a) b += 1 for i in range(a // 2, 0, -1): print(' ' * b + '*' * (a - 2 * b) + ' ' * b) b += 1