val q = '"'; val s = @("val q = '", "'; val s = @(", "); implement main0 () = (print s.0; print q; print s.1; print q; print s.0; print q; print s.3; print q; print s.1; print q; print s.3; print q; print s.2; print q; print s.3; print q; print s.3; print q; print s.2; print_newline ())", ", "); implement main0 () = (print s.0; print q; print s.1; print q; print s.0; print q; print s.3; print q; print s.1; print q; print s.3; print q; print s.2; print q; print s.3; print q; print s.3; print q; print s.2; print_newline ())