#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<typeinfo>
using namespace std;
class Base {
friend bool operator==(const Base&,</
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<typeinfo>
using namespace std;
class Base {
friend bool operator==(const Base&,</