#include "TrianglesContainOrigin.cpp"

int main(int argc, char **argv)
{
    int i, j;
    class TrianglesContainOrigin TheClass;
    long long retval;
    vector <int> x;
    vector <int> y;

    if (argc != 2) { fprintf(stderr, "usage: a.out num -- use '-' to enter x/y pairs on stdin\n"); exit(1); }

    /*
      x = ;
      y = ;
    */

    if (strcmp(argv[1], "-") == 0) {
        while (cin >> i >> j) {
            x.push_back(i);
            y.push_back(j);
        }
    }
    else {
        if (atoi(argv[1]) == 0) {
            x.push_back(-1);
            x.push_back(-1);
            x.push_back(1);
            y.push_back(1);
            y.push_back(-1);
            y.push_back(0);
        }

        if (atoi(argv[1]) == 1) {
            x.push_back(-1);
            x.push_back(-1);
            x.push_back(1);
            x.push_back(2);
            y.push_back(1);
            y.push_back(-1);
            y.push_back(2);
            y.push_back(-1);
        }

        if (atoi(argv[1]) == 2) {
            x.push_back(-1);
            x.push_back(-2);
            x.push_back(3);
            x.push_back(3);
            x.push_back(2);
            x.push_back(1);
            y.push_back(-2);
            y.push_back(-1);
            y.push_back(1);
            y.push_back(2);
            y.push_back(3);
            y.push_back(3);
        }

        if (atoi(argv[1]) == 3) {
            x.push_back(1);
            x.push_back(5);
            x.push_back(10);
            x.push_back(5);
            x.push_back(-5);
            x.push_back(7);
            x.push_back(-9);
            x.push_back(-6);
            x.push_back(-3);
            x.push_back(0);
            x.push_back(8);
            x.push_back(8);
            x.push_back(1);
            x.push_back(-4);
            x.push_back(7);
            x.push_back(-3);
            x.push_back(10);
            x.push_back(9);
            x.push_back(-6);
            y.push_back(5);
            y.push_back(-6);
            y.push_back(-3);
            y.push_back(4);
            y.push_back(-2);
            y.push_back(-8);
            y.push_back(-7);
            y.push_back(2);
            y.push_back(7);
            y.push_back(4);
            y.push_back(2);
            y.push_back(0);
            y.push_back(-4);
            y.push_back(-8);
            y.push_back(7);
            y.push_back(5);
            y.push_back(-5);
            y.push_back(-2);
            y.push_back(-9);
        }
    }

    retval = TheClass.count(x, y);
    cout << retval << endl;

    exit(0);
}