#include <iostream>
using namespace std;
class A {
private:
int k;
public:
A(): k(12) {
}
void f()
{
cout << k;
}
};
class B: public A {
public:
int k;
};
int main() {
B b;
b.f();
// your code goes here
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKY2xhc3MgQSB7CiAgIHByaXZhdGU6IAogICAJaW50IGs7CiAgIHB1YmxpYzoKICAgICBBKCk6IGsoMTIpIHsKICAgICAJCiAgICAgfQogICAgIHZvaWQgZigpIAogICAgIHsKICAgICAJY291dCA8PCBrOwogICAgIH0KfTsKCmNsYXNzIEI6IHB1YmxpYyBBIHsKCXB1YmxpYzoKCSBpbnQgazsKfTsKCmludCBtYWluKCkgewoJQiBiOwoJYi5mKCk7CgkvLyB5b3VyIGNvZGUgZ29lcyBoZXJlCglyZXR1cm4gMDsKfQ==