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[1]> () NIL [2]> (setf oo-languages '(simula smalltalk java clos)) (SIMULA SMALLTALK JAVA CLOS) [3]> oo-languages (SIMULA SMALLTALK JAVA CLOS) [4]> 'oo-languages OO-LANGUAGES [5]> (car oo-languages) SIMULA [6]> (cdr oo-languages) (SMALLTALK JAVA CLOS) [7]> (car (cdr oo-languages)) SMALLTALK [8]> (cdr (cdr oo-languages)) (JAVA CLOS) [9]> (cadr oo-languages) SMALLTALK [10]> (cddr oo-languages) (JAVA CLOS) [11]> (first oo-languages) SIMULA [12]> (second oo-languages) SMALLTALK [13]> (third oo-languages) JAVA [14]> (nth 2 oo-languages) JAVA [15]> (bye)