#include <iostream>

#include "../paths.hpp"

using namespace Sass;

template<typename T>

std::vector<T>& operator<<(std::vector<T>& v, const T& e)

{

  v.push_back(e);

  return v;

}

int main()

{

  std::vector<int> v1, v2, v3;

  v1 << 1 << 2;

  v2 << 3;

  v3 << 4 << 5 << 6;

  std::vector<std::vector<int> > ss;

  ss << v1 << v2 << v3;

  std::vector<std::vector<int> > ps = paths(ss);

  for (size_t i = 0, S = ps.size(); i < S; ++i) {

    std::cout << vector_to_string(ps[i]) << std::endl;

  }

  return 0;

}