@@ -0,0 +1,558 @@
+package com.javarush.task.task20.task2021;%0A%0Aimport java.io.*;%0A%0A/* %0A%D0%A1%D0%B5%D1%80%D0%B8%D0%B0%D0%BB%D0%B8%D0%B7%D0%B0%D1%86%D0%B8%D1%8F %D0%BF%D0%BE%D0%B4 %D0%B7%D0%B0%D0%BF%D1%80%D0%B5%D1%82%D0%BE%D0%BC%0A*/%0Apublic class Solution implements Serializable %7B%0A    public static class SubSolution extends Solution %7B%0A        private void writeObject(ObjectOutputStream out) throws IOException %7B%0A            throw new NotSerializableException();%0A        %7D%0A%0A        private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException %7B%0A            throw new NotSerializableException();%0A        %7D%0A    %7D%0A%0A    public static void main(String%5B%5D args) %7B%0A%0A    %7D%0A%7D%0A

Task --> 2021