$ include "seed7_05.s7i";

const func string: reverse (in string: stri) is func
  result
    var string: result is "";
  local
    var integer: index is 0;
  begin
    for index range length(stri) downto 1 do
      result &:= stri[index];
    end for;
  end func;

const proc: main is func
  begin
    writeln(reverse("Was it a cat I saw"));
  end func;