#Python3

#Example 1
for i in range(-3,4):
    print('*'+(' '*abs(i**2-3))+'*') if i>-3 and i<3  else print('*')


#Skip Lines
print('\n\n')
#Example 2
for i in range(-2,3):
    print((' '*abs(i*2))+'*'+(' '*(-(abs(4*i))+7))+'*') if i>-2 and i<2 else print((' '*abs(i)*2)+'*')


#Skip Lines
print('\n\n')
#Alternate approach to Example 1
a=['*']*7
for i in range(0,len(a)-1):
    a[i+1] = '*'+(' '*(i+1))+'*'
    if i>3: a[i]= '*'+(' '*(6-i))+'*'
    print(a[i])
    if i==5: print('*')



#Output
"""
*
* *
*  *
*   *
*  *
* *
*



    *
  *   *
*       *
  *   *
    *



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

"""