#include "Encoder.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 250005;
vector<int> gph[MAXN];
int dfn[MAXN], sz[MAXN], piv;
void dfs(int x, int p){
sz[x] = 1;
dfn[x] = ++piv;
for(auto &i : gph[x]){
if(i != p){
dfs(i, x);
sz[x] += sz[i];
}
}
}
void Encode(int N, int A[], int B[]){
for(int i=0; i<N-1; i++){
gph[A[i]].push_back(B[i]);
gph[B[i]].push_back(A[i]);
}
dfs(0, -1);
for (int i = 0; i < N; ++i) {
Code(i, ((long long)dfn[i] << 18) + sz[i]);
}
}
#include "Device.h"
void InitDevice(){
}
int Answer(long long S, long long T){
int dfnS = (S >> 18);
int szS = S & ((1<<18) - 1);
int dfnT = (T >> 18);
int szT = T & ((1<<18) - 1);
if(dfnS <= dfnT && dfnT + szT <= dfnS + szS){
return 1;
}
if(dfnT <= dfnS && dfnS + szS <= dfnT + szT){
return 0;
}
return 2;
}
