(define (filter lis)
  (if (pair? lis)
      (if (number? (car lis))
          (cons (car lis) (filter (cdr lis)))
          (filter (cdr lis)))
package pac;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;

import config.AppConfig;

public class Facade {
 private Facade() {

 public static String put(String key) {
  AnnotationConfigApplicationContext acac = new AnnotationConfigApplicationContext();
  AppConfig ac = acac.getBean(AppConfig.class);
  Generater gen = ac.generaterBean();
  return gen.generate(Database.find(key));


Educators, generals, dieticians, psychologists, and parents program. Armies, students, and some societies are programmed. An assault on large problems employs a succession of programs, most of which spring into existence en route. These programs are rife with issues that appear to be particular to the problem at hand. To appreciate programming as an intellectual activity in its own right you must turn to computer programming; you must read and write computer programs -- many of them. It doesn't matter much what the programs are about or what applications they serve. What does matter is how well they perform and how smoothly they fit with other programs in the creation of still greater programs. The programmer must seek both perfection of part and adequacy of collection. In this book the use of ``program'' is focused on the creation, execution, and study of programs written in a dialect of Lisp for execution on a digital computer. Using Lisp we restrict or limit not what we may program, but only the notation for our program descriptions.
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