-*** TODO Function CONS
-*** TODO Function CONSP
-*** TODO Function ATOM
-*** TODO Function RPLACA, RPLACD
-*** TODO Accessor CAR, CDR, CAAR, CADR, CDAR, CDDR, CAAAR, CAADR, CADAR, CADDR, CDAAR, CDADR, CDDAR, CDDDR, CAAAAR, CAAADR, CAADAR, CAADDR, CADAAR, CADADR, CADDAR, CADDDR, CDAAAR, CDAADR, CDADAR, CDADDR, CDDAAR, CDDADR, CDDDAR, CDDDDR
+*** DONE Function CONS
+*** DONE Function CONSP
+*** DONE Function ATOM
+*** DONE Function RPLACA, RPLACD
+*** DOING Accessor CAR, CDR, CAAR, CADR, CDAR, CDDR, CAAAR, CAADR, CADAR, CADDR, CDAAR, CDADR, CDDAR, CDDDR, CAAAAR, CAAADR, CAADAR, CAADDR, CADAAR, CADADR, CADDAR, CADDDR, CDAAAR, CDAADR, CDADAR, CDADDR, CDDAAR, CDDADR, CDDDAR, CDDDDR