12 Days of Christmas
4th99 Bottles of Beer
12thAbundant Numbers
57thArabic to Roman
10thArrows
13thbrainfuck
8thChristmas Trees
27thCSS Colors
13thDiamonds
10thDivisors
8thEmirp Numbers
36thEmojify
5thEvil Numbers
83rdLeap Years
44thMorse Decoder
6thMorse Encoder
6thPrime Numbers
41stQuine
29thRule 110
7thSeven Segment
16thSpelling Numbers
6thSudoku
4thUnited States
11th