#include <iostream>
using namespace std;

class MyClass {
    int i;
public:
    MyClass(int n) {
        i = n;
    }
    int get_nmbr() {
        return this->i;
    }
};


int main() {
    MyClass myClass(100), *p;
    p = &myClass;
    
    cout << sizeof(MyClass) << endl;
    cout << sizeof(MyClass*) << endl;
    cout << &myClass << endl;
    cout << &p << endl;

    return 0;
}