12 Days of Christmas
429
99 Bottles of Beer
464
Arabic to Roman
409
Arithmetic Numbers
823
Arrows
565
ASCII Table
385
Card Number Validation
438
Collatz
635
606
CSS Colors
108
Day of Week
772
Emojify
252
Evil Numbers
816
Fibonacci
7871,000878
Fizz Buzz
875
770646
Gray Code Encoder
491
Happy Numbers
449
Intersection
598
ISBN
542
Leap Years
589809758741771725851
772754
Morse Encoder
196
Ordinal Numbers
586
PalindromemordnilaP
637
Quine
484
Roman to Arabic
418
ROT13
431
Tic-tac-toe
450