#include <cmath>
#include <iostream>
#include <iomanip>
#include <algorithm>

using namespace std;

const double kEps = 1e-10;
const double kInf = 1e15;

int dcmp(double x) {
  if (fabs(x) < kEps) return 0;
  return x < 0 ? -1 : 1;
}

struct Vector {
  double x, y;
  Vector() {}
  Vector(double x, double y): x(x), y(y) {}
  // Vector(const Point & p1, const Point & p2): x(p2.x - p1.x), y(p2.y - p1.y) {}
  Vector(const Vector & v);

  double Norm() const { return hypot(x, y); }
  double NormSquared() const { return x * x + y * y; }
  Vector Normalize() const {
    return *this / this->Norm();
  }
  Vector operator-() const {
    return Vector(-x, -y);
  }
  Vector operator+(const Vector & rhs) const {
    return Vector(x + rhs.x, y + rhs.y);
  }
  Vector operator-(const Vector & rhs) const {
    return *this + (-rhs);
  }
  Vector operator*(const double rhs) const {
    return Vector(rhs * x, rhs * y);
  }
  Vector operator/(const double rhs) const {
    return *this * (1.0 / rhs);
  }
  double Dot(const Vector & rhs) const {
    return x * rhs.x + y * rhs.y;
  }
  double Cross(const Vector & rhs) const {
    return x * rhs.y - y * rhs.x;
  }
  bool operator==(const Vector & rhs) const {
    return dcmp(x - rhs.x) == 0 && dcmp(y - rhs.y) == 0;
  }
  bool operator<(const Vector & rhs) const {
    return dcmp(x - rhs.x) < 0 || (dcmp(x - rhs.x) == 0 && dcmp(y - rhs.y) < 0);
  }
};

struct Point {
  Point() {}
  Point(double x, double y): x(x), y(y) {}
  Point(const Point & p);

  double x, y;

  Point operator-() {
    return Point(-x, -y);
  }
  Point operator+(const Vector & rhs) const {
    return Point(x + rhs.x, y + rhs.y);
  }
  Point operator-(const Vector & rhs) const {
    return *this + (-rhs);
  }
  bool operator==(const Point & rhs) const {
    return dcmp(x - rhs.x) == 0 && dcmp(y - rhs.y) == 0;
  }
  bool operator<(const Point & rhs) const {
    return dcmp(x - rhs.x) < 0 || (dcmp(x - rhs.x) == 0 && dcmp(y - rhs.y) < 0);
  }
};

struct Line {
  Line() {}
  Line(const Point & p1, const Point & p2): p1(p1), p2(p2) {
    if (dcmp(p2.x - p1.x) == 0) {
      slope = kInf;
    } else {
      slope = (p2.y - p1.y) / (p2.x - p1.x);
    }
  }
  Line(double x1, double y1, double x2, double y2): p1(x1, y1), p2(x2, y2) {
    if (dcmp(x2 - x1) == 0) {
      slope = kInf;
    } else {
      slope = (y2 - y1) / (x2 - x1);
    }
  }
  Line(const Line & l);

  Point p1, p2;
  double slope;
};

ostream & operator<<(ostream & os, const Point & p) {
  os << p.x << " " << p.y;
  return os;
}

ostream & operator<<(ostream & os, const Vector & v) {
  os << v.x << " " << v.y;
  return os;
}

bool IsParellel(const Line & l1, const Line & l2) {
  return dcmp(l1.slope - l2.slope) == 0;
}

bool IsOrthgonal(const Line & l1, const Line & l2) {
  if ((dcmp(l1.slope - kInf) == 0 && dcmp(l2.slope) == 0)
      || (dcmp(l1.slope) == 0 && dcmp(l2.slope - kInf) == 0)) {
    return true;
  } else if (dcmp(l1.slope - kInf) == 0 && dcmp(l1.slope - kInf) == 0) {
    return false;
  } else {
    return dcmp(l1.slope * l2.slope + 1) == 0;
  }
}

int main(int argc, char const *argv[]) {
  double x0, y0, x1, y1;
  Point p0(x0, y0);
  Point p1(x1, y1);

  int q;
  cin >> q;
  for (unsigned i = 0; i < q; ++i) {
    double x0, y0, x1, y1, x2, y2, x3, y3;
    cin >> x0 >> y0 >> x1 >> y1 >> x2 >> y2 >> x3 >> y3;

    if (IsParellel(Line(x0, y0, x1, y1), Line(x2, y2, x3, y3))) {
      cout << 2 << "\n";
    } else if (IsOrthgonal(Line(x0, y0, x1, y1), Line(x2, y2, x3, y3))) {
      cout << 1 << "\n";
    } else {
      cout << 0 << "\n";
    }
  }
  return 0;
}

Measured memory_bytes: 3224