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beginner
Problem 01 • Step 01
Evaluate a Number
This is the simplest kind of expression: just a number.
When the evaluator sees a number like 5, that’s already the final result. There’s nothing else to break down or compute. This is called the base case, the point where no further evaluation is needed.
Your task is to tell the evaluator what will be the result of evaluation when the input is a plain number.
Remove the text null // Replace null with your expression and write your expression.