#include <vector>
#include <iostream>
#include <fstream>
 
struct Point
{
  float x, y, z;
};
std::istream& operator>>(std::istream& in, Point& obj)
{return in >> obj.x >> obj.y >> obj.z;}
std::ostream& operator<<(std::ostream& in, const Point& obj)
{return in << obj.x << ' ' << obj.y << ' ' << obj.z;}
 
typedef std::vector<std::vector<Point> > NFPAGE;
 
std::istream& operator>>(std::istream& filestream , NFPAGE& NFPoints) {
  long numpoints = 0;
  while(filestream) {
    filestream >> numpoints;
    if (!filestream)
      break;
    std::vector<Point> pnts(numpoints);
    for(int i=0; filestream && i<numpoints; ++i)
      filestream >> pnts[i];
    if (filestream)
      NFPoints.emplace_back(std::move(pnts));
  }
  return filestream;
}
 
std::ostream& operator<<(std::ostream& filestream, const NFPAGE& NFPoints) {
  filestream << NFPoints.size() << '\n';
  for(unsigned i=0; i<NFPoints.size(); ++i) {
    filestream << NFPoints[i].size() << '\n';
    for(unsigned j=0; j<NFPoints[i].size(); ++j)
      filestream << NFPoints[i][j] << '\n';
  }
  return filestream;
}
 
int main()
{
  NFPAGE NFPoints;
  //std::ifstream filestream("Some file");
  //filestream >> NFPoints;
  std::cin >> NFPoints;
  std::cout << NFPoints;
}

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3 
-0.16 -0.025 0.18 
-0.1575 -0.025 0.18 
-0.155 -0.025 0.18 
3 
-0.1525 -0.025 0.18 
-0.15 -0.025 0.18 
-0.1475 -0.025 0.18