#include
int main()
{
using namespace std;
double x, y;
cout << "Enter x coordinate: ";<br> cin >> x;
cout << "Enter y coordinate: ";<br> cin >> y;
if (((y >= x / 3.0) && (y <= x * 3.0) && (y >= x * 3.0 - 8) && (y <= x / 3.0 + 8.0 / 3.0))<br> || ((y <= x / 3.0) && (y >= x * 3.0) && (y <= x * 3.0 + 8) && (y >= x / 3.0 - 8.0 / 3.0)))
cout << "yes";<br> else
cout << "no";<br> cout << endl;<br> return 0;
}