9.Person

import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

class Person {
    private String name;
    private int age;
    private double income;

    public Person(String name, int age, double income) {
        this.name = name;
        this.age = age;
        this.income = income;
    }

    public int getAge() {
        return age;
    }

    public double getIncome() {
        return income;
    }

    @Override
    public String toString() {
        return "Person{name='" + name + "', age=" + age + ", income=" + income + '}';
    }
}

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        Set<Person> setA = new HashSet<>();
        Set<Person> setB = new HashSet<>();
        Set<Person> setC = new HashSet<>();

        // Reading set A of persons from the user
        System.out.println("Enter the number of persons in set A:");
        int n = scanner.nextInt();
        scanner.nextLine(); // Consume newline
        for (int i = 0; i < n; i++) {
            System.out.println("Enter details for person " + (i + 1) + " (name, age, income):");
            String[] details = scanner.nextLine().split("\\s+");
            String name = details[0];
            int age = Integer.parseInt(details[1]);
            double income = Double.parseDouble(details[2]);
            setA.add(new Person(name, age, income));
        }

        // Computing set B of persons whose age >= 60
        for (Person person : setA) {
            if (person.getAge() >= 60) {
                setB.add(person);
            }
        }

        // Computing set C of persons whose income < 10000
        for (Person person : setA) {
            if (person.getIncome() < 10000) {
                setC.add(person);
            }
        }

        // Computing set B union C
        Set<Person> setBC = new HashSet<>(setB);
        setBC.addAll(setC);

        // Printing the computed sets
        System.out.println("\nSet B (Persons aged 60 or above):");
        printSet(setB);
        System.out.println("\nSet C (Persons with income < 10000):");
        printSet(setC);
        System.out.println("\nSet B union C:");
        printSet(setBC);
    }

    private static void printSet(Set<Person> set) {
        for (Person person : set) {
            System.out.println(person);
        }
    }
}