Fix/issue 60

[PrianshuKumarSahu]

Which issue does this fix?

all testcases are passed

Closes #60

Which file did you change?

python-open-source-challenge/issue-60.py

What was wrong, and what did you change?

logical error

Terminal output

$ python3 python-open-source-challenge/issue-__.py

Checklist

• I commented /claim on the issue and it is assigned to me
• My branch is named fix/issue-__ (not main)
• I changed only the one file this issue is about
• Running the file prints All checks passed!
• I did not rewrite the program from scratch
• I did not edit check_solution()
• If I used an AI tool, I understand the change and can explain it in review

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