#include <cstdio>


int X,Y,Z;


int main(){

    int  x=1,y=2,z=3;
    printf("%d\n",x);
    printf("%d\n",y);
    printf("%d\n",z);

    printf("\n");
    printf("%X\n",&x);
    printf("%X\n",&y);
    printf("%X\n",&z);



    int *p;
    int * q;
    int* r;

    p=&x;
    q=&y;
    r=&z;

    printf("\n");
    printf("%X\n",p);
    printf("%X\n",q);
    printf("%X\n",r);

        printf("\n");
    printf("%X\n",&p);
    printf("%X\n",&q);
    printf("%X\n",&r);

    *p=15;
    *q=16;
    *r=17;

    printf("\n");
    printf("%d\n",x);
    printf("%d\n",y);
    printf("%d\n",z);

    int * pointerLaAdresaZero = NULL;
    //*pointerLaAdresaZero=2222;




    int * pointer;

    pointer = new int;

    printf("\n");
    printf("%X\n",pointer);
    *pointer = 333;
    printf("%d\n",*pointer);


    printf("\n");
    printf("%X\n",&X);
    printf("%X\n",&Y);
    printf("%X\n",&Z);



    return 0;
}