#include <iostream>
using namespace std;
int& func();
int main()
{
cout << func();
}
int& func()
{
int a = 99;
return a;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgoKdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCmludCYgZnVuYygpOwoKaW50IG1haW4oKQp7CiAgICBjb3V0IDw8IGZ1bmMoKTsKfQogCmludCYgZnVuYygpCnsKICAgIGludCBhID0gOTk7CiAgICByZXR1cm4gYTsKfQ==