Knowledge base for The Weekly Challenge club members using Perl, Raku, Ada, APL, Awk, Bash, BASIC, Bc, Befunge-93, Bourne Shell, BQN, Brainfuck, C3, C, CESIL, C++, C#, Clojure, COBOL, Coconut, Crystal, D, Dart, Dc, Elm, Emacs Lisp, Erlang, Excel VBA, Fennel, Fish, Forth, Fortran, Gembase, GNAT, Go, Haskell, Haxe, HTML, Idris, IO, J, Janet, Java, JavaScript, Julia, Kotlin, Lisp, Lua, M4, Miranda, Modula 3, MMIX, Mumps, Myrddin, Nim, Nix, Node.js, Nuweb, OCaml, Odin, Ook, Pascal, PHP, Python, Postscript, Prolog, R, Ring, Ruby, Rust, Scala, Scheme, Sed, Smalltalk, SQL, Swift, Tcl, TypeScript, Visual BASIC, WebAssembly, Wolfram, XSLT and Zig.