/**
 * 
 */

/**
 * @author DELL
 * Project Name: Java_learn
 * Class Name: EchoTestDrive
 * date: 2019年8月19日{time}
 */
public class EchoTestDrive {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Echo e1 = new Echo();
        Echo e2 = new Echo();
        
        int x = 0;
        while (x < 4) {
            e1.hello();
            e1.count = e1.count + 1;
            if (x > 0) {
                e2.count = e2.count + 1;
            }
            if (x > 1) {
                e2.count = e2.count + e1.count;
            }
            x = x + 1;
        }
        System.out.println(e2.count);
    }
}