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  DB<156> sub tst { (map {lc} @_)[0.. wantarray * $#_] }

...

  DB<158> $scalar=tst("A".."D")
 => "a"

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  DB<159> sub tst { (map {lc} @_)[0.. $#_] }

...

  DB<161> $scalar=tst("A".."D")
 => "d"