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

class SegmentsAndPoints
{
    public:
        string isPossible(vector <int> p, vector <int> l, vector <int> r);
};

string SegmentsAndPoints::isPossible(vector <int> p, vector <int> l, vector <int> r)
{
  return "";
}