PYTHON 3 Loop adding "?" to a word

Question

As title suggest, I want to add and print a word + "?" n times as my sequence. Here follows my code:
a="word"
b=list(range(1,5))
for i in b:
print(a)
a=a + "?" *i
if a=="word????" :
break
print(end)

Output just print odd number of "?".
Any help?

Answer 1

Ok sorry, I did it.
For whom interested:

a= "word"
b=list(range(0,5))
for i in b:
print(a+"?"*i)
if a=="word????":
break
print("end")

Answer 2

Get rid of the *i?

Answer 3

a="word"
b=list(range(1,5))
for i in b:
print(a=+"?" *i)
if a=="word????" :
break
print(end)