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    The Calendar hole will go live in approximately . Why not try and solve it ahead of time?

    gifti258

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    12 Days of Christmas
    772
    99 Bottles of Beer
    792
    Abundant Numbers
    719
    Abundant Numbers (Long)
    803
    Arabic to Roman
    951
    Arrows
    345
    Ascending Primes
    534
    ASCII Table
    706
    brainfuck
    531
    Catalan Numbers
    625
    Catalan’s Constant
    71
    Christmas Trees
    460
    Collatz
    738
    CSS Colors
    894
    Cubes
    425
    Day of Week
    887
    Diamonds
    403
    Divisors
    697
    Emirp Numbers
    578
    Emirp Numbers (Long)
    719
    Emojify
    401
    Evil Numbers
    851
    Evil Numbers (Long)
    899
    Farey Sequence
    637
    Fibonacci
    703
    Fizz Buzz
    638
    Foo Fizz Buzz Bar
    673
    Forsyth–Edwards Notation
    593
    Fractions
    850
    Happy Numbers
    430
    Hexdump
    426
    Intersection
    524
    ISBN
    610
    Jacobi Symbol
    196
    Leap Years
    636
    Levenshtein Distance
    946
    Leyland Numbers
    457
    Look and Say
    773
    Niven Numbers
    744
    Niven Numbers (Long)
    864
    Number Spiral
    379
    Odious Numbers
    853
    Odious Numbers (Long)
    899
    Ordinal Numbers
    692
    Pangram Grep
    723
    Pascal’s Triangle
    570
    Pernicious Numbers
    901
    Pernicious Numbers (Long)
    923
    Prime Numbers
    960
    Prime Numbers (Long)
    964
    Repeating Decimals
    401
    Reverse Polish Notation
    796
    Rijndael S-box
    220
    Rock-paper-scissors-Spock-lizard
    499
    Roman to Arabic
    971
    Seven Segment
    471
    SI Units
    602
    Smith Numbers
    762
    Tongue-twisters
    859
    United States
    156