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#Python Program to print a simple christmas tree pattern using asterisk

def christmastree(level): #function definition

'''

Functions prints the pattern of christmas tree

params:

level: inputs the height of the tree

returns:

None

'''

a=level-1

b=1

for image in range(0,level):

for pixel in range(0,a):

print(' ',end='')

for image in range(0,b):

print('*',end='')

for pixel in range(0,a):

print(' ',end='')

b=b+2

a=a-1

print()

for l in range(3):

print(' '*(level-2),'*')

if __name__ == "__main__": #main function

level= int(input("Enter the height of christmas tree (Integer less than 30):")) #inputs the height of the tree

christmastree(level) #function calling

'''

Sample Output :

Enter the height of christmas tree (Integer less than 30):10

*

***

*****

*******

*********

***********

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

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

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

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

*

*

*

'''