public class HelloWorld {
    public static void main(String[] args) {
  int age=25;
  if(age>60){
      System.out.println("老年");
     }else if(40<=age<=60){
      System.out.println("中年");
     }else if(18<=age<40){
      System.out.println("少年");
     }else
      System.out.println("童年");