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This user (ALBERT ALEXANDER STONIER) appears to have gamed the system, with fraudulent "likes" of this unremarkable solution submitted by 'sock-puppet' accounts. —DIV
Vectorize the digits of an Integer
Sum of the Matrix Elements
Cryptography with A Square Matrix : Decoding
Go back n times
Write c^3 as sum of two squares a^2+b^2
Lunar Arithmetic (Addition)
Cryptography with A Square Matrix : Encoding
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