#include <iostream>
#include <cmath>
#include <cstdio>
using namespace std;

const double PI = 4.0*atan(1.0);
const int MAXL = 120;

class point
{
public:
	point(double xx=0.0, double yy=0.0) : x(xx), y(yy)
	{};

	double x, y;
};

double dist(point p1, point p2)
{
	double dx = p1.x - p2.x;
	double dy = p1.y - p2.y;
	return sqrt(dx*dx+dy*dy);
}

int main()
{
	double w, l, h, r;
	point p1, p2, p3;
	double d, theta;
	point lhole, rhole;

	double pi = 4*atan(1.0);
	cin >> w >> l;
		if (w < 0 || w > MAXL) {
			cout << "ERROR: width out of range: " << w << endl; return 1; }
		if (l < 0 || l > MAXL) {
			cout << "ERROR: length out of range: " << l << endl; return 2; }
		int ns, tots = 0;
		cin >> r >> p1.x >> p1.y >> p2.x >> p2.y >> p3.x >> p3.y >> h;

		if (r < 1 || r >5) {
			cout << "ERROR: invalid r value = " << r << endl; return 3; }
		if (h > l/2 || h < r) {
			cout << "ERROR: invalid h value = " << h << endl; return 4; }
		if (p1.x -r < 0 || p1.x+r > w) {
			cout << "ERROR: ball 1 off of table " << p1.x << ',' << p1.y << endl; return 5; }
		if (p1.y+r > l) {
			cout << "ERROR: ball 1 off of table " << p1.x << ',' << p1.y << endl; return 6; }
		if (p1.y -r <= h) {
			cout << "ERROR: ball 1 below h line " << p1.x << ',' << p1.y << endl; return 7; }
		if (p2.x -r < 0 || p2.x+r > w) {
			cout << "ERROR: ball 2 off of table " << p2.x << ',' << p2.y << endl; return 8; }
		if (p2.y+r > l) {
			cout << "ERROR: ball 2 off of table " << p2.x << ',' << p2.y << endl; return 9; }
		if (p2.y -r <= h) {
			cout << "ERROR: ball 2 below h line " << p2.x << ',' << p2.y << endl; return 10; }
		if (p3.x -r < 0 || p3.x+r > w) {
			cout << "ERROR: ball 3 off of table " << p3.x << ',' << p3.y << endl; return 11; }
		if (p3.y+r > l) {
			cout << "ERROR: ball 3 off of table " << p3.x << ',' << p3.y << endl; return 12; }
		if (p3.y -r <= h) {
			cout << "ERROR: ball 3 below h line " << p3.x << ',' << p3.y << endl; return 13; }

		if (dist(p1, p2) <= 2*r) {
			cout << "ERROR: balls 1 and 2 too close " << p1.x << ',' << p1.y << ' ' << p2.x << ',' << p2.y << endl; return 14; }
		if (dist(p1, p3) <= 2*r) {
			cout << "ERROR: balls 1 and 3 too close " << p1.x << ',' << p1.y << ' ' << p3.x << ',' << p3.y << endl; return 15; }
		if (dist(p2, p3) <= 2*r) {
			cout << "ERROR: balls 2 and 3 too close " << p2.x << ',' << p2.y << ' ' << p3.x << ',' << p3.y << endl; return 16; }

return 42;

}