Playing with I and j!!

Question

Hi. So I want to write a very simple program so if we enter an odd number as an input it gives us to rhombuses next to each other(large diameter equal to the entrance)
Example:
Input: 5
Outpapp

* *
*** ***
**********
*** ***
* *

I wrote the program but for the same input mine is:

* *
* * * *
* * * * * *
* * * *
* *

What's the problem with my code? For example I tried to delete the space or adding another * and it was ok but for the first and last star we will have to 2 stars too!
My code:

https://code.sololearn.com/cAO2K3ndNcm1/?ref=app

Answer 1

Correct code,

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

Answer 2

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