Alphabet ← ⊂⊂⊂+@A⇡26+@a⇡26+@0⇡10"+/"
Enc ← ♭⬚@=↯¯1_3⊏∶Alphabet≡(⍘⋯⇌)⬚0↯¯1_6∵(⇌↘¯1⋯+256)-@\0
Dec ← +@\0⍘⋯≡⇌⬚0↯¯1_8≡⇌⋯⊗∶Alphabet▽≠@=.
&p Dec&p.Enc "The quick brown fox jumped over the lazy dog"