#include <iostream>

using namespace std;

int main(){

int value = 100;

int *pointer_1;

pointer_1 = &value;

int **pointer_2;

pointer_2 = &pointer_1;

int ***pointer_3;

pointer_3 = &pointer_2;

//-----------> output

cout << pointer_1 << endl; // output : 0x61ff08

cout << *pointer_1 << endl;// output : 100

cout << *pointer_2 + 1 << endl;// output : 0x61ff0c

cout << **pointer_2 << endl;// output : 100

cout << **pointer_2 + 100 << endl;// output : 200

cout << **pointer_3 << endl;// output : 0x61ff08

cout << ***pointer_3 << endl;// output : 100

cout << endl << endl << endl;

***pointer_3 = 3000;

cout << "***pointer_3 = 3000" << endl;// output : ***pointer_3 = 3000

cout << "value = " << ***pointer_3 << endl;// output : value = 3000

cout << endl << endl << endl;

**pointer_2 = *pointer_1 + 100;

cout << "**pointer_2 = *pointer_1 + 100; = " << **pointer_2 << endl;

// output : **pointer_2 = *pointer_1 + 100; = 3100

cout << endl << endl ;

cout <<"pointer_1 = "<< *pointer_1 << endl;// output :pointer_1 = 3100

cout <<"pointer_2 = "<< **pointer_2 << endl;// output : pointer_2 = 3100

cout <<"pointer_3 = "<< ***pointer_3 << endl;// output : pointer_3 = 3100

cout << "value = " << value << endl;// output : value = 3100

return 0;

}