print ("Enter the limit")
rows = int(input())
#top half
k = 0
for i in range(1, rows + 1):
# print spaces
for j in range (1, (rows - i) + 1):
print(end = " ")
# let's print stars
while k != (2 * i - 1):
print("*", end = "")
k = k + 1
k = 0
# add a line break
print()
#bottom half
k = 2
m = 1
for i in range(1, rows):
# print spaces
for j in range (1, k):
print(end = " ")
k = k + 1
# print star
while m <= (2 * (rows - i) - 1):
print("*", end = "")
m = m + 1
m = 1
#add a line break
print()