import java.util.*;
 
class Tribe {
    private String name;
    private int population;
    private boolean fireKnowledge;
 
    public Tribe(String name, int population, boolean fireKnowledge) {
        this.name = name;
        this.population = population;
        this.fireKnowledge = fireKnowledge;
    }
 
    public String getName() {
        return name;
    }
 
    public int getPopulation() {
        return population;
    }
 
    public boolean hasFireKnowledge() {
        return fireKnowledge;
    }
 
    public static void main(String[] args) {
        Tribe[] tribes = {
            new Tribe("Они", 100, true),
            new Tribe("Яган", 75, false),
            new Tribe("Хауш", 50, true),
            new Tribe("Алакалуф", 120, false),
            new Tribe("Ямана", 90, true)
        };
 
        int totalPopulation = 0;
 
        System.out.println("Племена, знакомые с огнём:");
 
        for (Tribe tribe : tribes) {
            totalPopulation += tribe.getPopulation();
            if (tribe.hasFireKnowledge()) {
                System.out.println(tribe.getName());
            }
        }
 
        System.out.println("Общая численность племён: " + totalPopulation);
    }
}
 

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