#include <iostream>
#include <memory>
int main() {
int a = 123;
int& b = a;
std::cout << std::addressof(a) << std::endl;
std::cout << std::addressof(b) << std::endl;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8bWVtb3J5PgoKaW50IG1haW4oKSB7CglpbnQgYSA9IDEyMzsKCWludCYgYiA9IGE7CglzdGQ6OmNvdXQgPDwgc3RkOjphZGRyZXNzb2YoYSkgPDwgc3RkOjplbmRsOwoJc3RkOjpjb3V0IDw8IHN0ZDo6YWRkcmVzc29mKGIpIDw8IHN0ZDo6ZW5kbDsKCXJldHVybiAwOwp9