#include <iostream>

using namespace std;

int main() {
	int  i    = 10;
	int  j    = 20;
	int  k    = 30;
	int  l    = 40;
	int  m    = 50;
	int *ptr1 = &i;
	int *ptr2 = &m;

	cout << "The address of the variable i is "    <<  ptr1 
	     << " containing the value "               << *ptr1 << endl;
	++ptr1;
	cout << "The next addressable address is "     <<  ptr1 
	     << " containing the value "               << *ptr1 << endl;
	ptr1 -= 2;
	cout << "The previous addressable address is " <<  ptr1
	     << " containing the value "               << *ptr1 << endl << endl;

	ptr1 = ptr2;

	cout << "The address of the variable m is "    <<  ptr1 
	     << " containing the value "               << *ptr1 << endl;
	++ptr1;
	cout << "The next addressable address is "     <<  ptr1 
	     << " containing the value "               << *ptr1 << endl;
	ptr1 -= 2;
	cout << "The previous addressable address is " <<  ptr1
	     << " containing the value "               << *ptr1 << endl << endl;

	if (&i <= &m) {
	   for (int *a = &i; a <= &m; a++) {
	      cout << "Address " << a << " contains the value " << *a << endl;
	   }
	} else {
	   for (int *a = &m; a <= &i; a++) {
	      cout << "Address " << a << " contains the value " << *a << endl;
	   }
	}

	int *a;
	int  num;
	cout << endl;

	if (&i <= &m) {
	   a   = &i;
	   num = (&m - &i);
	} else {
	   a   = &m;
	   num = (&i - &m);
	}
	for (int c = num; c >= 0; c--) {
	   cout << "Address " << a+c << " contains the value " << a[c] << endl;
	}

	return 0;
}