#include <string>
#include <vector>
#include <list>
#include <cmath>
#include <algorithm>
#include <map>
#include <set>
#include <iostream>
#include <sstream>
#include <cstdio>
#include <cstdlib>
using namespace std;

class Solution {
  public:
    int numberOfWeakCharacters(vector<vector<int> >& properties);
};

int Solution::numberOfWeakCharacters(vector<vector<int> >& p) 
{
  return 0;
}

/* The main either reads values from stdin (with no argument),
   or generates random input using the argument as a seed to the RNG.
   If you give it another argument, it will print the numbers. */

int main(int argc, char **argv)
{
  vector < vector <int> > p;
  int i, j, n;
  int s;
  Solution S;

  if (argc == 1) {
    s = 0;
    while (cin >> i >> j) {
      p.resize(s+1);
      p[s].push_back(i);
      p[s].push_back(j);
      s++;
    }
  } else {
    srand48(atoi(argv[1]));
    n = drand48()*100000 + 1;
    p.resize(n);
    for (i = 0; i < n; i++) {
      p[i].push_back(drand48() * 99999 + 1);
      p[i].push_back(99999 - p[i][0] + drand48() * 100);
      if (p[i][1] < 1) p[i][1] = 1;
    }
    if (argc == 3) {
      for (i = 0; i < p.size(); i++) printf("%6d %6d\n", p[i][0], p[i][1]);
    }
  }

  cout << S.numberOfWeakCharacters(p) << endl;
  return 0;
}