interface Eatable
{
    public abstract void eat();
}

class chinese implements Eatable
{
    public void eat()
    {
        System.out.println("中国人吃");
    }
}

class American implements Eatable
{
    public void eat()
    {
        System.out.println("美国人吃");
    }
}

class Indian implements Eatable
{
    public void eat()
    {
        System.out.println("印度人吃");
    }
}

public class test
{
    public static void main(String[] args)
    {
        Eatable[] e = new Eatable[10];
        for (int i = 0; i < e.length; i++) {
            if(i % 2 == 0)
            {
                e[i] = new chinese();
            }
            else if(i % 3 == 0)
            {
                e[i] = new American();
            }
            else
            {
                e[i] = new Indian();
            }
        }

        for (int i = 0; i < e.length; i++) {
            e[i].eat();
        }
    }
}