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

class TreesAnalysis {
  public:
    long long treeSimilarity(vector <int> tree1, vector <int> tree2);
};

long long TreesAnalysis::treeSimilarity(vector <int> t1, vector <int> t2)
{
  return 0;
}