How can I remove single substrings like a,b,c?

#1
#2

hello @supratik260699

u only need to handle digit=0 case .
for that ur if statement should look like.
image

#4

@aman212yadav still one test case is not passing

#5

actually in output they are considering space as well so no need to handle digit 0 separately .
so remove that if statement and let ur for loop handle everthing .

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