#include <iostream>
using namespace std;

void main(){
	int i = 0;
	int x = 3, y;
	y = ++x;
	cout << " y = " << y << " x = " << x << endl;
	x = 3;
	y = x++;
	cout << " y = " << y << " x = " << x << endl;

	cout << "while(i++ < 5)" << endl << endl;
	while(i++ < 5){
      cout << i << " ";
	}
	i = 0;
	cout << endl << "while(++i < 5)" << endl << endl;
	while(++i < 5){
      cout << i << " ";
	}
	cout << endl;
	cout << endl << "for(i = 0; i < 5; i++)" << endl << endl;
	for(i = 0; i < 5; i++)
      cout << i << " ";
	cout << endl << "for(i = 0; i < 5; ++i)" << endl << endl;
	for(i = 0; i < 5; ++i)
      cout << i << " ";
    cout << endl;
	cout << endl << "for(i = 0; i++ < 5;)" << endl << endl;
	for(i = 0; i++ < 5;) 
      cout << i << " ";
	cout << endl << "for(i = 0; ++i < 5;)" << endl << endl;
	for(i = 0; ++i < 5;)
      cout << i << " ";
    cout << endl;
}