#include <iostream>
#include <string>

using namespace std;

void Call1(const string * a);
void Call2(string * a);

int main() {
    string x = "Hello";

    Call1(&x);
    Call2(&x);

    cout << " In main, x = " << x << endl;

    return 0;
}

void Call1(const string *  a){
    cout << "In Call1, I was passed " << *a << endl;
    Call2( const_cast<string *> (a));
    //Call2( a);

    return;
}

void Call2(string *  a){
    cout << "In Call2, I was passed " << *a << endl;
    *a = "world" + *a;

    return;
}