Problem
Read a score and print its letter grade on the full scale:
90 and above A 80 to 89 B 70 to 79 C 60 to 69 D below 60 F
Input 85 prints B.
85
B
Press «Submit» to run your code against the task's test cases — that is what sets your score. «AI review» is an optional second opinion: it reads your code — logic and style, not just the output — and suggests the next step without handing over the answer. It never changes your score.