String Asterisk Zig Zag Pattern

The program must accept a string S as the input. The program must print the desired pattern as shown in the Example Input/Output section.

Boundary Condition(s):
2< Length of S <= 100

Input Format:
The first line contains S.

Output Format:
The lines contain the desired pattern as shown in the Example Input/Output section.

Example Input/Output 1:
Input:
abcde
Output
abcde
abcd*
*bede

abc**
**cde

ab***
***de

a****
****e
*****
*****

Example Input/Output 2:
Input:
How
Output
How
Ho*
*OW

H**
**w
***
***

a=input().strip()
print(a)
for i in range(1,len(a)): 
	print(a[0:len(a)-i], end="")
	for k in range(i): 
		print("*", end="")
	print()
	for k in range(i):
		print("*", end="")
	print (a[i:])
print('*'*(len(a)))
print('*'*(len(a)))