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14 21 13 2 5 18 12 5 1 18 14 5 18

This time, it has numbers. But no letters.

There are 2 common ciphers that are purely number based. A1Z26 and ASCII

Remember, if the number range is 1 to 26 or 0 to 25 then it's definetly A1Z26 / A0Z25