#include <iostream>

int main() {
    int ab;
    int* pq=&ab;
    ab=5;

    std::cout << "ab: " << ab <<std::endl;
    std::cout << "pq: " << *pq <<std::endl;

    *pq = 10;

    
    std::cout << ab <<std::endl;
    std::cout << *pq <<std::endl;
    
    
    return 0;
}