#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e5 + 5;
const int Mod = 1000000007;
const int INF = 0x3f3f3f3f;
const long long LL_INF = 0x3f3f3f3f3f3f3f3f;
const double e = exp(1);
const double PI = acos(-1);
const double ERR = 1e-10;
const double eps = 1e-12;
const double inf = 1e20;
const double pi = acos(-1.0);
const int maxp = 1e5 + 10;
int sgn(double x) {
  if (fabs(x) < eps) return 0;
  if (x < 0) return -1;
  return 1;
}
inline double sqr(double x) { return x * x; }
struct Point {
  double x, y;
  int id;
  Point() {}
  Point(double _x, double _y) { x = _x, y = _y; }
  void input() { scanf("%lf%lf", &x, &y); }
  void output() { cout << "x= " << x << " y= " << y << endl; }
  bool operator==(Point b) const {
    return sgn(x - b.x) == 0 && sgn(y - b.y) == 0;
  }
  bool operator<(Point b) const {
    return sgn(x - b.x) == 0 ? sgn(y - b.y) < 0 : x < b.x;
  }
  Point operator-(const Point &b) const { return Point(x - b.x, y - b.y); }
  double operator^(const Point &b) const { return x * b.y - y * b.x; }
  double operator*(const Point &b) const { return x * b.x + y * b.y; }
  double len() { return hypot(x, y); }
  double len2() { return x * x + y * y; }
  double distance(Point p) { return hypot(x - p.x, y - p.y); }
  Point operator+(const Point &b) const { return Point(x + b.x, y + b.y); }
  Point operator*(const double &k) const { return Point(x * k, y * k); }
  Point operator/(const double &k) const { return Point(x / k, y / k); }
  double rad(Point a, Point b) {
    Point p = *this;
    return fabs(atan2(fabs((a - p) ^ (b - p)), (a - p) * (b - p)));
  }
  Point trunc(double r) {
    double l = len();
    if (!sgn(l)) return *this;
    r /= l;
    return Point(x * r, y * r);
  }
  Point rotat(Point p, double angle) {
    Point v = (*this) - p;
    double c = cos(angle), s = sin(angle);
    return Point(p.x + v.x * c - v.y * s, p.y + v.x * s + v.y * c);
  }
};
struct Line {
  Point s, e;
  Line() {}
  Line(Point _s, Point _e) { s = _s, e = _e; }
  bool operator==(Line v) { return (s == v.s) && (e == v.e); }
  Line(Point p, double angle) {
    s = p;
    if (sgn(angle - pi / 2) == 0)
      e = (s + Point(0, 1));
    else
      e = (s + Point(1, tan(angle)));
  }
  Line(double a, double b, double c) {
    if (sgn(a) == 0) {
      s = Point(0, -c / b);
      e = Point(1, -c / b);
    } else if (sgn(b) == 0) {
      s = Point(-c / a, 0);
      e = Point(-c / a, 1);
    } else {
      s = Point(0, -c / b);
      e = Point(1, (-c - a) / b);
    }
  }
  Point getV() { return e - s; }
  void input() {
    s.input();
    e.input();
  }
  void adjust() {
    if (e < s) swap(s, e);
  }
  double length() { return s.distance(e); }
  double angle() {
    double k = atan2(e.y - s.y, e.x - s.x);
    if (sgn(k) < 0) k += pi;
    if (sgn(k - pi) == 0) k -= pi;
    return k;
  }
  int relation(Point p) {
    int c = sgn((p - s) ^ (e - s));
    if (c < 0)
      return 1;
    else if (c > 0)
      return 2;
    return 3;
  }
  bool pointonseg(Point p) {
    return sgn((p - s) ^ (e - s)) == 0 && sgn((p - s) * (p - e)) <= 0;
  }
  bool parallel(Line v) { return sgn((e - s) ^ (v.e - v.s)) == 0; }
  int segcrossseg(Line v) {
    int d1 = sgn((e - s) ^ (v.s - s));
    int d2 = sgn((e - s) ^ (v.e - s));
    int d3 = sgn((v.e - v.s) ^ (s - v.s));
    int d4 = sgn((v.e - v.s) ^ (e - v.s));
    if ((d1 ^ d2) == -2 && (d3 ^ d4) == -2) return 2;
    return ((d1 == 0 && sgn((v.s - s) * (v.s - e)) <= 0) ||
            (d2 == 0 && sgn((v.e - s) * (v.e - e)) <= 0) ||
            (d3 == 0 && sgn((s - v.s) * (s - v.e)) <= 0) ||
            (d4 == 0 && sgn((e - v.s) * (e - v.e)) <= 0));
  }
  Point lineprog(Point p) {
    return s + (((e - s) * ((e - s) * (p - s))) / ((e - s).len2()));
  }
  Point symmetrypoint(Point p) {
    Point q = lineprog(p);
    return Point(2.0 * q.x - p.x, 2.0 * q.y - p.y);
  }
  double dispointtoline(Point p) { return fabs((p - s) ^ (e - s)) / length(); }
  double dispointtoseg(Point p) {
    if (sgn((p - s) * (e - s)) < 0 || sgn((p - e) * (s - e)) < 0)
      return min(p.distance(s), p.distance(e));
    return dispointtoline(p);
  }
  int linecrossline(Line v) {
    if ((*this).parallel(v)) return v.relation(s) == 3;
    return 2;
  }
  Point crosspoint(Line v) {
    double a1 = (v.e - v.s) ^ (s - v.s);
    double a2 = (v.e - v.s) ^ (e - v.s);
    return Point((s.x * a2 - e.x * a1) / (a2 - a1),
                 (s.y * a2 - e.y * a1) / (a2 - a1));
  }
};
struct circle {
  Point p;
  double r;
  circle() {}
  circle(Point _p, double _r) { p = _p, r = _r; }
  circle(double x, double y, double _r) { p = Point(x, y), r = _r; }
  void input() {
    p.input();
    scanf("%Lf", &r);
  }
  void output() { printf("%.2Lf %.2Lf %.2Lf", p.x, p.y, r); }
  bool operator==(circle v) { return p == v.p && sgn(r - v.r) == 0; }
  bool operator<(circle v) const {
    return ((p < v.p) || ((p == v.p) && sgn(r - v.r) < 0));
  }
  int relationseg(Line v) {
    double dst = v.dispointtoseg(p);
    if (sgn(dst - r) < 0)
      return 2;
    else if (sgn(dst - r) == 0)
      return 1;
    return 0;
  }
  int relationline(Line v) {
    double dst = v.dispointtoline(p);
    if (sgn(dst - r) < 0)
      return 2;
    else if (sgn(dst - r) == 0)
      return 1;
    return 0;
  }
  int pointcrossline(Line v, Point &p1, Point &p2) {
    if (!(*this).relationline(v)) return 0;
    Point a = v.lineprog(p);
    double d = v.dispointtoline(p);
    d = sqrt(r * r - d * d);
    if (sgn(d) == 0) {
      p1 = a;
      p2 = a;
      return 1;
    }
    p1 = a + (v.e - v.s).trunc(d);
    p2 = a - (v.e - v.s).trunc(d);
    return 2;
  }
  int relationcircle(circle v) {
    double d = p.distance(v.p);
    if (sgn(d - r - v.r) > 0) return 5;
    if (sgn(d - r - v.r) == 0) return 4;
    double l = fabs(r - v.r);
    if (sgn(d - r - v.r) < 0 && sgn(d - l) > 0) return 3;
    if (sgn(d - l) == 0) return 2;
    if (sgn(d - l) < 0) return 1;
  }
};
struct polygon {
  int n;
  Point p[maxp];
  Line l[maxp];
  void input(int _n) {
    n = _n;
    for (int i = 0; i < n; i++) p[i].input();
  }
  void add(Point q) { p[n++] = q; }
  void getline() {
    for (int i = 0; i < n; i++) {
      l[i] = Line(p[i], p[(i + 1) % n]);
    }
  }
  void norm() {
    Point mi = p[0];
    for (int i = 1; i < n; i++) mi = min(mi, p[i]);
    sort(p, p + n, cmp(mi));
  }
  struct cmp {
    Point p;
    cmp(const Point &p0) { p = p0; }
    bool operator()(const Point &aa, const Point &bb) {
      Point a = aa, b = bb;
      int d = sgn((a - p) ^ (b - p));
      if (d == 0) return sgn(a.distance(p) - b.distance(p)) < 0;
      return d > 0;
    }
  };
  bool three(Point a, Point b, Point c) {
    Line la = Line(a, b);
    Line lb = Line(b, c);
    if (la.parallel(lb)) return true;
    return false;
  }
  void Graham(polygon &convex) {
    norm();
    cout << "n"
         << " = " << (n) << endl;
    for (int i = 0; i < n; i++) p[i].output();
    cout << "OK" << endl;
    int &top = convex.n;
    top = 0;
    if (n == 1) {
      top = 1;
      convex.p[0] = p[0];
      return;
    }
    if (n == 2) {
      top = 2;
      convex.p[0] = p[0];
      convex.p[1] = p[1];
      if (convex.p[0] == convex.p[1]) top--;
      return;
    }
    convex.p[0] = p[0];
    convex.p[1] = p[1];
    top = 2;
    for (int i = 2; i < n; i++) {
      while (top > 1 && three(p[i], p[top - 1], p[top - 2]) == false &&
             sgn((convex.p[top - 1] - convex.p[top - 2]) ^
                 (p[i] - convex.p[top - 2])) < 0) {
        top--;
      }
      convex.p[top++] = p[i];
    }
    if (convex.n == 2 && (convex.p[0] == convex.p[1])) convex.n--;
  }
  void getconvex(polygon &convex) {
    sort(p, p + n);
    convex.n = n;
    for (int i = 0; i < min(n, 2); i++) convex.p[i] = p[i];
    if (convex.n == 2 && (convex.p[0] == convex.p[1])) convex.n--;
    if (n <= 2) return;
    int &top = convex.n;
    top = 1;
    for (int i = 2; i < n; i++) {
      while (top &&
             sgn((convex.p[top] - p[i]) ^ (convex.p[top - 1] - p[i])) < 0)
        top--;
      convex.p[++top] = p[i];
    }
    int temp = top;
    convex.p[++top] = p[n - 2];
    for (int i = n - 3; i >= 0; i--) {
      while (top != temp &&
             sgn((convex.p[top] - p[i]) ^ (convex.p[top - 1] - p[i])) < 0)
        top--;
      convex.p[++top] = p[i];
    }
    if (convex.n == 2 && (convex.p[0] == convex.p[1])) convex.n--;
  }
  double getarea() {
    double sum = 0;
    for (int i = 0; i < n; i++) {
      sum += (p[i] ^ p[(i + 1) % n]);
    }
    return fabs(sum) / 2.0;
  }
  int relationPoint(Point q) {
    for (int i = 0; i < n; i++)
      if (p[i] == q) return 3;
    getline();
    for (int i = 0; i < n; i++)
      if (l[i].pointonseg(q)) return 2;
    int cnt = 0;
    for (int i = 0; i < n; i++) {
      int j = (i + 1) % n;
      int k = sgn((q - p[j]) ^ p[i] - p[j]);
      int u = sgn(p[i].y - q.y);
      int v = sgn(p[j].y - q.y);
      if (k > 0 && u < 0 && v >= 0) cnt++;
      if (k < 0 && v < 0 && u >= 0) cnt--;
    }
    return cnt != 0;
  }
} vex, vex2;
Point a[maxn], b[maxn], P[maxn];
int main() {
  int n, m;
  vex.n = 0;
  scanf("%d", &n);
  for (int i = 1; i <= n; i++) a[i].input();
  scanf("%d", &m);
  for (int i = 1; i <= m; i++) b[i].input();
  for (int i = 1; i <= n; i++) vex.add(a[i]);
  for (int i = 1; i <= m; i++) vex.add(b[i]);
  vex.getconvex(vex2);
  int cnt = vex2.n;
  for (int i = 0; i < cnt; i++) P[i] = vex2.p[i];
  sort(P, P + cnt);
  for (int i = 1; i <= m; i++) {
    int tmp = lower_bound(P, P + cnt, b[i]) - P;
    if (P[tmp] == b[i]) return 0 * puts("NO");
  }
  return 0 * puts("YES");
  return 0;
}

### Prompt

Your challenge is to write a CPP solution to the following problem:

You've got another geometrical task. You are given two non-degenerate polygons A and B as vertex coordinates. Polygon A is strictly convex. Polygon B is an arbitrary polygon without any self-intersections and self-touches. The vertices of both polygons are given in the clockwise order. For each polygon no three consecutively following vertices are located on the same straight line.

Your task is to check whether polygon B is positioned strictly inside polygon A. It means that any point of polygon B should be strictly inside polygon A. "Strictly" means that the vertex of polygon B cannot lie on the side of the polygon A.

Input

The first line contains the only integer n (3 ≤ n ≤ 105) — the number of vertices of polygon A. Then n lines contain pairs of integers xi, yi (|xi|, |yi| ≤ 109) — coordinates of the i-th vertex of polygon A. The vertices are given in the clockwise order.

The next line contains a single integer m (3 ≤ m ≤ 2·104) — the number of vertices of polygon B. Then following m lines contain pairs of integers xj, yj (|xj|, |yj| ≤ 109) — the coordinates of the j-th vertex of polygon B. The vertices are given in the clockwise order.

The coordinates of the polygon's vertices are separated by a single space. It is guaranteed that polygons A and B are non-degenerate, that polygon A is strictly convex, that polygon B has no self-intersections and self-touches and also for each polygon no three consecutively following vertices are located on the same straight line.

Output

Print on the only line the answer to the problem — if polygon B is strictly inside polygon A, print "YES", otherwise print "NO" (without the quotes).

Examples

Input

6
-2 1
0 3
3 3
4 1
3 -2
2 -2
4
0 1
2 2
3 1
1 0


Output

YES


Input

5
1 2
4 2
3 -3
-2 -2
-2 1
4
0 1
1 2
4 1
2 -1


Output

NO


Input

5
-1 2
2 3
4 1
3 -2
0 -3
5
1 0
1 1
3 1
5 -1
2 -1


Output

NO

### Response

```cpp
#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e5 + 5;
const int Mod = 1000000007;
const int INF = 0x3f3f3f3f;
const long long LL_INF = 0x3f3f3f3f3f3f3f3f;
const double e = exp(1);
const double PI = acos(-1);
const double ERR = 1e-10;
const double eps = 1e-12;
const double inf = 1e20;
const double pi = acos(-1.0);
const int maxp = 1e5 + 10;
int sgn(double x) {
  if (fabs(x) < eps) return 0;
  if (x < 0) return -1;
  return 1;
}
inline double sqr(double x) { return x * x; }
struct Point {
  double x, y;
  int id;
  Point() {}
  Point(double _x, double _y) { x = _x, y = _y; }
  void input() { scanf("%lf%lf", &x, &y); }
  void output() { cout << "x= " << x << " y= " << y << endl; }
  bool operator==(Point b) const {
    return sgn(x - b.x) == 0 && sgn(y - b.y) == 0;
  }
  bool operator<(Point b) const {
    return sgn(x - b.x) == 0 ? sgn(y - b.y) < 0 : x < b.x;
  }
  Point operator-(const Point &b) const { return Point(x - b.x, y - b.y); }
  double operator^(const Point &b) const { return x * b.y - y * b.x; }
  double operator*(const Point &b) const { return x * b.x + y * b.y; }
  double len() { return hypot(x, y); }
  double len2() { return x * x + y * y; }
  double distance(Point p) { return hypot(x - p.x, y - p.y); }
  Point operator+(const Point &b) const { return Point(x + b.x, y + b.y); }
  Point operator*(const double &k) const { return Point(x * k, y * k); }
  Point operator/(const double &k) const { return Point(x / k, y / k); }
  double rad(Point a, Point b) {
    Point p = *this;
    return fabs(atan2(fabs((a - p) ^ (b - p)), (a - p) * (b - p)));
  }
  Point trunc(double r) {
    double l = len();
    if (!sgn(l)) return *this;
    r /= l;
    return Point(x * r, y * r);
  }
  Point rotat(Point p, double angle) {
    Point v = (*this) - p;
    double c = cos(angle), s = sin(angle);
    return Point(p.x + v.x * c - v.y * s, p.y + v.x * s + v.y * c);
  }
};
struct Line {
  Point s, e;
  Line() {}
  Line(Point _s, Point _e) { s = _s, e = _e; }
  bool operator==(Line v) { return (s == v.s) && (e == v.e); }
  Line(Point p, double angle) {
    s = p;
    if (sgn(angle - pi / 2) == 0)
      e = (s + Point(0, 1));
    else
      e = (s + Point(1, tan(angle)));
  }
  Line(double a, double b, double c) {
    if (sgn(a) == 0) {
      s = Point(0, -c / b);
      e = Point(1, -c / b);
    } else if (sgn(b) == 0) {
      s = Point(-c / a, 0);
      e = Point(-c / a, 1);
    } else {
      s = Point(0, -c / b);
      e = Point(1, (-c - a) / b);
    }
  }
  Point getV() { return e - s; }
  void input() {
    s.input();
    e.input();
  }
  void adjust() {
    if (e < s) swap(s, e);
  }
  double length() { return s.distance(e); }
  double angle() {
    double k = atan2(e.y - s.y, e.x - s.x);
    if (sgn(k) < 0) k += pi;
    if (sgn(k - pi) == 0) k -= pi;
    return k;
  }
  int relation(Point p) {
    int c = sgn((p - s) ^ (e - s));
    if (c < 0)
      return 1;
    else if (c > 0)
      return 2;
    return 3;
  }
  bool pointonseg(Point p) {
    return sgn((p - s) ^ (e - s)) == 0 && sgn((p - s) * (p - e)) <= 0;
  }
  bool parallel(Line v) { return sgn((e - s) ^ (v.e - v.s)) == 0; }
  int segcrossseg(Line v) {
    int d1 = sgn((e - s) ^ (v.s - s));
    int d2 = sgn((e - s) ^ (v.e - s));
    int d3 = sgn((v.e - v.s) ^ (s - v.s));
    int d4 = sgn((v.e - v.s) ^ (e - v.s));
    if ((d1 ^ d2) == -2 && (d3 ^ d4) == -2) return 2;
    return ((d1 == 0 && sgn((v.s - s) * (v.s - e)) <= 0) ||
            (d2 == 0 && sgn((v.e - s) * (v.e - e)) <= 0) ||
            (d3 == 0 && sgn((s - v.s) * (s - v.e)) <= 0) ||
            (d4 == 0 && sgn((e - v.s) * (e - v.e)) <= 0));
  }
  Point lineprog(Point p) {
    return s + (((e - s) * ((e - s) * (p - s))) / ((e - s).len2()));
  }
  Point symmetrypoint(Point p) {
    Point q = lineprog(p);
    return Point(2.0 * q.x - p.x, 2.0 * q.y - p.y);
  }
  double dispointtoline(Point p) { return fabs((p - s) ^ (e - s)) / length(); }
  double dispointtoseg(Point p) {
    if (sgn((p - s) * (e - s)) < 0 || sgn((p - e) * (s - e)) < 0)
      return min(p.distance(s), p.distance(e));
    return dispointtoline(p);
  }
  int linecrossline(Line v) {
    if ((*this).parallel(v)) return v.relation(s) == 3;
    return 2;
  }
  Point crosspoint(Line v) {
    double a1 = (v.e - v.s) ^ (s - v.s);
    double a2 = (v.e - v.s) ^ (e - v.s);
    return Point((s.x * a2 - e.x * a1) / (a2 - a1),
                 (s.y * a2 - e.y * a1) / (a2 - a1));
  }
};
struct circle {
  Point p;
  double r;
  circle() {}
  circle(Point _p, double _r) { p = _p, r = _r; }
  circle(double x, double y, double _r) { p = Point(x, y), r = _r; }
  void input() {
    p.input();
    scanf("%Lf", &r);
  }
  void output() { printf("%.2Lf %.2Lf %.2Lf", p.x, p.y, r); }
  bool operator==(circle v) { return p == v.p && sgn(r - v.r) == 0; }
  bool operator<(circle v) const {
    return ((p < v.p) || ((p == v.p) && sgn(r - v.r) < 0));
  }
  int relationseg(Line v) {
    double dst = v.dispointtoseg(p);
    if (sgn(dst - r) < 0)
      return 2;
    else if (sgn(dst - r) == 0)
      return 1;
    return 0;
  }
  int relationline(Line v) {
    double dst = v.dispointtoline(p);
    if (sgn(dst - r) < 0)
      return 2;
    else if (sgn(dst - r) == 0)
      return 1;
    return 0;
  }
  int pointcrossline(Line v, Point &p1, Point &p2) {
    if (!(*this).relationline(v)) return 0;
    Point a = v.lineprog(p);
    double d = v.dispointtoline(p);
    d = sqrt(r * r - d * d);
    if (sgn(d) == 0) {
      p1 = a;
      p2 = a;
      return 1;
    }
    p1 = a + (v.e - v.s).trunc(d);
    p2 = a - (v.e - v.s).trunc(d);
    return 2;
  }
  int relationcircle(circle v) {
    double d = p.distance(v.p);
    if (sgn(d - r - v.r) > 0) return 5;
    if (sgn(d - r - v.r) == 0) return 4;
    double l = fabs(r - v.r);
    if (sgn(d - r - v.r) < 0 && sgn(d - l) > 0) return 3;
    if (sgn(d - l) == 0) return 2;
    if (sgn(d - l) < 0) return 1;
  }
};
struct polygon {
  int n;
  Point p[maxp];
  Line l[maxp];
  void input(int _n) {
    n = _n;
    for (int i = 0; i < n; i++) p[i].input();
  }
  void add(Point q) { p[n++] = q; }
  void getline() {
    for (int i = 0; i < n; i++) {
      l[i] = Line(p[i], p[(i + 1) % n]);
    }
  }
  void norm() {
    Point mi = p[0];
    for (int i = 1; i < n; i++) mi = min(mi, p[i]);
    sort(p, p + n, cmp(mi));
  }
  struct cmp {
    Point p;
    cmp(const Point &p0) { p = p0; }
    bool operator()(const Point &aa, const Point &bb) {
      Point a = aa, b = bb;
      int d = sgn((a - p) ^ (b - p));
      if (d == 0) return sgn(a.distance(p) - b.distance(p)) < 0;
      return d > 0;
    }
  };
  bool three(Point a, Point b, Point c) {
    Line la = Line(a, b);
    Line lb = Line(b, c);
    if (la.parallel(lb)) return true;
    return false;
  }
  void Graham(polygon &convex) {
    norm();
    cout << "n"
         << " = " << (n) << endl;
    for (int i = 0; i < n; i++) p[i].output();
    cout << "OK" << endl;
    int &top = convex.n;
    top = 0;
    if (n == 1) {
      top = 1;
      convex.p[0] = p[0];
      return;
    }
    if (n == 2) {
      top = 2;
      convex.p[0] = p[0];
      convex.p[1] = p[1];
      if (convex.p[0] == convex.p[1]) top--;
      return;
    }
    convex.p[0] = p[0];
    convex.p[1] = p[1];
    top = 2;
    for (int i = 2; i < n; i++) {
      while (top > 1 && three(p[i], p[top - 1], p[top - 2]) == false &&
             sgn((convex.p[top - 1] - convex.p[top - 2]) ^
                 (p[i] - convex.p[top - 2])) < 0) {
        top--;
      }
      convex.p[top++] = p[i];
    }
    if (convex.n == 2 && (convex.p[0] == convex.p[1])) convex.n--;
  }
  void getconvex(polygon &convex) {
    sort(p, p + n);
    convex.n = n;
    for (int i = 0; i < min(n, 2); i++) convex.p[i] = p[i];
    if (convex.n == 2 && (convex.p[0] == convex.p[1])) convex.n--;
    if (n <= 2) return;
    int &top = convex.n;
    top = 1;
    for (int i = 2; i < n; i++) {
      while (top &&
             sgn((convex.p[top] - p[i]) ^ (convex.p[top - 1] - p[i])) < 0)
        top--;
      convex.p[++top] = p[i];
    }
    int temp = top;
    convex.p[++top] = p[n - 2];
    for (int i = n - 3; i >= 0; i--) {
      while (top != temp &&
             sgn((convex.p[top] - p[i]) ^ (convex.p[top - 1] - p[i])) < 0)
        top--;
      convex.p[++top] = p[i];
    }
    if (convex.n == 2 && (convex.p[0] == convex.p[1])) convex.n--;
  }
  double getarea() {
    double sum = 0;
    for (int i = 0; i < n; i++) {
      sum += (p[i] ^ p[(i + 1) % n]);
    }
    return fabs(sum) / 2.0;
  }
  int relationPoint(Point q) {
    for (int i = 0; i < n; i++)
      if (p[i] == q) return 3;
    getline();
    for (int i = 0; i < n; i++)
      if (l[i].pointonseg(q)) return 2;
    int cnt = 0;
    for (int i = 0; i < n; i++) {
      int j = (i + 1) % n;
      int k = sgn((q - p[j]) ^ p[i] - p[j]);
      int u = sgn(p[i].y - q.y);
      int v = sgn(p[j].y - q.y);
      if (k > 0 && u < 0 && v >= 0) cnt++;
      if (k < 0 && v < 0 && u >= 0) cnt--;
    }
    return cnt != 0;
  }
} vex, vex2;
Point a[maxn], b[maxn], P[maxn];
int main() {
  int n, m;
  vex.n = 0;
  scanf("%d", &n);
  for (int i = 1; i <= n; i++) a[i].input();
  scanf("%d", &m);
  for (int i = 1; i <= m; i++) b[i].input();
  for (int i = 1; i <= n; i++) vex.add(a[i]);
  for (int i = 1; i <= m; i++) vex.add(b[i]);
  vex.getconvex(vex2);
  int cnt = vex2.n;
  for (int i = 0; i < cnt; i++) P[i] = vex2.p[i];
  sort(P, P + cnt);
  for (int i = 1; i <= m; i++) {
    int tmp = lower_bound(P, P + cnt, b[i]) - P;
    if (P[tmp] == b[i]) return 0 * puts("NO");
  }
  return 0 * puts("YES");
  return 0;
}

```