#include <iostream>
#include "Point.h"
using namespace std;
 
int main() {
   Point p1(1, 2);
   cout << p1 << endl;   // (1,2)
 
   Point p2(3,4);
   cout << p1 + p2 << endl; // (4,6)
   cout << p1 + 10 << endl; // (11,12)
   cout << 20 + p1 << endl; // (21,22)
   cout << 10 + p1 + 20 + p1 << endl; // (32,34)
 
   p1 += p2;
   cout << p1 << endl; // (4,6)
   p1 += 3;
   cout << p1 << endl; // (7,9)
 
   Point p3;  // (0,0)
   cout << p3++ << endl; // (0,0)
   cout << p3 << endl;   // (1,1)
   cout << ++p3 << endl; // (2,2)
}