Java执行的顺序

请输出以下代码的执行顺序

package com.example.demo;

public class ClassA {

    // 静态变量
    static int a = 10;
    static int b;

    // 静态代码块
    static {
        System.out.println("Static block A");
        b = a * 2;
    }
    public static void functionA(){
        System.out.println("Function A");
    }

    public ClassA() {
        functionA();
        System.out.println("ClassA constructor");
    }

    public static void main(String[] args) {
        System.out.println("a = " + a);
        System.out.println("b = " + b);
    }
}

package com.example.demo;

public class ClassB extends ClassA{

    private static int a =12;
    private static int b= 13;

    static {
        System.out.println("static block B");
    }
    public static void functionB(){
        System.out.println("ClassB functionB");
    }
    public ClassB(){
        functionB();
        System.out.println("ClassB constructor");
    }

    public static void main(String[] args) {
        new ClassB();
    }



}