Arabic to Roman
478
Arrows
568
Card Number Validation
602
Christmas Trees
534
664
Collatz
755
Cubes
359
Emirp Numbers
510
Fibonacci
511
428
Fizz Buzz
641
Leap Years
730
ln 2
764
Morse Encoder
590
Prime Numbers
633
Roman to Arabic
521
Transpose Sentence
791
United States
Zeckendorf Representation
617
τ
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