#include <iostream>
 
class MyBaseClass {
public:
    void foo() {
        std::cout << "MyBaseClass foo()" << std::endl;
    }
};
 
class MyDerivedClass : public MyBaseClass {
public:
    void foo() {
        std::cout << "MyDerivedClass foo()" << std::endl;
    }
 
    void callBaseFoo() {
        MyBaseClass::foo(); // Call foo() from MyBaseClass
    }
};
 
int main() {
    MyDerivedClass obj;
    obj.foo();          // Calls MyDerivedClass foo()
    obj.callBaseFoo();  // Calls MyBaseClass foo()
    return 0;
}

I2luY2x1ZGUgPGlvc3RyZWFtPgoKY2xhc3MgTXlCYXNlQ2xhc3MgewpwdWJsaWM6CiAgICB2b2lkIGZvbygpIHsKICAgICAgICBzdGQ6OmNvdXQgPDwgIk15QmFzZUNsYXNzIGZvbygpIiA8PCBzdGQ6OmVuZGw7CiAgICB9Cn07CgpjbGFzcyBNeURlcml2ZWRDbGFzcyA6IHB1YmxpYyBNeUJhc2VDbGFzcyB7CnB1YmxpYzoKICAgIHZvaWQgZm9vKCkgewogICAgICAgIHN0ZDo6Y291dCA8PCAiTXlEZXJpdmVkQ2xhc3MgZm9vKCkiIDw8IHN0ZDo6ZW5kbDsKICAgIH0KCiAgICB2b2lkIGNhbGxCYXNlRm9vKCkgewogICAgICAgIE15QmFzZUNsYXNzOjpmb28oKTsgLy8gQ2FsbCBmb28oKSBmcm9tIE15QmFzZUNsYXNzCiAgICB9Cn07CgppbnQgbWFpbigpIHsKICAgIE15RGVyaXZlZENsYXNzIG9iajsKICAgIG9iai5mb28oKTsgICAgICAgICAgLy8gQ2FsbHMgTXlEZXJpdmVkQ2xhc3MgZm9vKCkKICAgIG9iai5jYWxsQmFzZUZvbygpOyAgLy8gQ2FsbHMgTXlCYXNlQ2xhc3MgZm9vKCkKICAgIHJldHVybiAwOwp9