1i\
(optimize-level 3)
\+;;; begin Stalin+,\+;;; end Stalin+d
\+;;; begin Scheme->C+,\+;;; end Scheme->C+d
\+;;; begin Gambit-C+,\+;;; end Gambit-C+d
\+;;; begin Bigloo+,\+;;; end Bigloo+d
\+;;; begin Chez+d
\+;;; end Chez+d
\+;;; begin Chicken+,\+;;; end Chicken+d
$a\
(exit)
