#include <iostream>

using namespace std;

//x1y2-x2y1

double line_and_point(double x1, double y1, double x2, double y2) {
    return x1 * y2 - x2 * y1;
}

bool check_segment_point(double x, double y, double x1, double y1, double x2, double y2) {
    double a = y2 - y1;
    double b = x1 - x2;
    double c = -(a * x2 + b * y2);
    return (a * x + b * y + c == 0 && (x1 - x) * (x2 - x) + (y1 - y) * (y2 - y) <= 0);
}

int main() {
    double x1, y1, x2, y2, x3, y3, x4, y4;
    cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3 >> x4 >> y4;
    double p1 = line_and_point(x2 - x1, y2 - y1, x3 - x1, y3 - y1);
    double p2 = line_and_point(x2 - x1, y2 - y1, x4 - x1, y4 - y1);
    double p3 = line_and_point(x4 - x3, y4 - y3, x1 - x3, y1 - y3);
    double p4 = line_and_point(x4 - x3, y4 - y3, x2 - x3, y2 - y3);
    if (p1 * p2 < 0 && p3 * p4 < 0 || (check_segment_point(x1, y1, x3, y3, x4, y4) ||
        check_segment_point(x2, y2, x3, y3, x4, y4) || check_segment_point(x3, y3, x1, y1, x2, y2) ||
        check_segment_point(x4, y4, x1, y1, x2, y2))) {
        cout << "YES";
    } else {
        cout << "NO";
    }
    return 0;
}