Reformat · Easy
Remove duplicates
A list has repeated items, sometimes in different capitals.
Task
Write a prompt that keeps only the first time each item appears.
Output format
one item per line
- Items that differ only in capitals are the same.
- Keep the first version, exactly as written, in the original order.
Your prompt must contain {input}: it is replaced by each test case, just like the hidden tests in a hiring test.
Sample case 1
Input
apple banana apple
Output
apple banana
Sample case 2
Input
Milk milk BREAD Milk
Output
Milk BREAD
There are 4 test cases in all; the others are like hidden tests: work out what tricky inputs they might use!