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

    Macweese

    3,012
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    2,996
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    ⛳

    5 / 123 Holes

    🔣

    9 / 62 Langs

    🏆

    12 / 98 Cheevos

    📅

    Card Number Validation in Java in Bytes Play Hole

    20th in Java and 697th overall.

    Last tested .

    Runtime of .

    Bytes Chars Submitted
    178 178
    178 178
    179 179
    181 181
    183 183
    188 188