12 Days of Christmas
490455
99 Bottles of Beer
566
Arabic to Roman
488455
Arrows
564563
ASCII Table
834
Calendar
567
Card Number Validation
476
Christmas Trees
409
CSS Colors
139
Diamonds
464452
Emojify
301
Evil Numbers
419
Fizz Buzz
753865
Fractions
668612
Hexdump
673
ISBN
733
Morse Encoder
198
Niven Numbers
618693
Odious Numbers
602
Reverse Polish Notation
639
Roman to Arabic
462
ROT13
343
Sudoku
518
Tongue-twisters
562