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Encode Decimal to Triangle-code

Enter a decimal number: Encode
Converted triangle-code:

Decode Triangle-code to Decimal

Enter a Triangle-code: Decode
Decoded decimal number:

Reference

遁遙，2024-02-19 9:18，https://twitter.com/hrkkwkm__/status/1759371821617705000，(参照：2024-02-20)