Up the down staircase

This is the solution I found and it’s working.
All the other references were not working

“L”.upto(“P”) { |letter| print letter, “”

puts newline


Hello @raffaele, welcome to the forums! Do you have a question about why this works? (This looks like Ruby; am I correct?)
Edit: I moved this into the Get Help >> Ruby category.

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Correct. .upto is a Ruby String class method.

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Have to ask, is there a question to accompany this topic? Else it will have to be closed.

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