#include <iostream>
#include <cstdio>
#include <string>
#include <utility>
#include <thread>
#include "kaikeba/lesson1.h"
#include "kaikeba/lesson2.h"

extern fun_ptr add4;


int test_lesson1_main();

int main() {

//    test_lesson1_main();

    lesson1_main();

//    lesson2_main();


    return 0;
}