rhombus_of_stars

count_stars = int(input())
number_spaces = count_stars
space_step = -1
number_stars = 1
stars_step = 1
for row in range(1, 2 * count_stars):
    print(" " * (number_spaces - 1) + "* " * number_stars)
    if row == count_stars:
        space_step = 1
        stars_step = -1
    number_spaces += space_step
    number_stars += stars_step