#-swank (unless (member :child-sbcl *features*) (quit :recklessly-p t :unix-status (process-exit-code (run-program *runtime-pathname* `("--control-stack-size" "1024MB" "--noinform" "--disable-ldb" "--lose-on-corruption" "--end-runtime-options" "--eval" "(push :child-sbcl *features*)" "--script" ,(namestring *load-pathname*)) :output t :error t :input t)))) (defun main () (let* ((N (read)) (answer 1) (MOD (1- (ash 1 (1+ N))))) (loop for i from 2 to N do (setf answer (mod (* answer (1- (ash 1 i))) MOD))) (format t "~A~%" (if (= answer 0) "Yes" "No")))) (main)