!yamlscript/v0

s =: set(nil).into('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')
m =: drop(26 s).concat(take(26 s)).zipmap(s _)

defn main(s):
  say: map(\(m %1 %1) s).apply(str _)