#include "stdio.h"
#include "stdlib.h"
#include "conio.h"
#include "iostream.h"

void main ( void )
{

int base;
int altura;
int area;

clrscr();

cout << endl << "  base:         "; cin >> base;
cout << endl << "  altura:         "; cin >> altura;

area = base * altura;


cout << endl << "  el area  es:        " << area;

getch ();

if (  area < 500 )

   {
	  cout << endl << "CH";

   }
else
   {

	  cout << endl << "G";

   }

getch ();

}