#include "Encoder.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 250010;
typedef long long ll;
typedef pair<int,int> ii;
static vector<ii> guloso[MAXN];
static vector<int> grafo[MAXN];
static int tam[MAXN],ini[MAXN],fim[MAXN],dfsCount;
static void dfs_sz(int v,int p){
tam[v] = 1;
int tem_folha = 0;
for(int u : grafo[v]){
if(u == p) continue;
dfs_sz(u,v);
if(tam[u] != 1){
tam[v] += tam[u];
}
else{
if(!tem_folha){
tem_folha = 1;
tam[v] += 1;
}
}
}
}
static void dfs_euler(int v,int p){
ini[v] = ++dfsCount;
int tem_folha = 0;
for(int u : grafo[v]){
if(u == p) continue;
guloso[v].push_back(ii(tam[u],u));
}
sort(guloso[v].rbegin(),guloso[v].rend());
for(ii par : guloso[v]){
int sz_u = par.first, u = par.second;
if(sz_u != 1){
dfs_euler(u,v);
}
else{
if(!tem_folha){
tem_folha++;
dfsCount++;
ini[u] = dfsCount;
fim[u] = dfsCount;
}
else{
ini[u] = dfsCount;
fim[u] = dfsCount;
}
}
}
fim[v] = dfsCount;
}
static long long coding(int A,int B){
B -= A;
long long davez = A;
davez += (1LL << 18)*ll(B);
return davez;
}
void Encode(int N, int A[], int B[]){
for(int i = 0;i<N-1;i++){
grafo[A[i]].push_back(B[i]);
grafo[B[i]].push_back(A[i]);
}
dfs_sz(0,-1);
dfs_euler(0,-1);
for(int i = 0;i<N;i++){
ini[i]--;
fim[i]--;
}
for (int i = 0; i < N; ++i) {
Code(i, coding(ini[i],fim[i]) );
}
}
#include "Device.h"
#include <bits/stdc++.h>
using namespace std;
void InitDevice(){
}
static void Magic(long long X, int &ini, int& fim ){
ini = 0;
fim = 0;
long long temp = (X >> 18);
fim += temp;
X -= (temp)*(1 << 18);
ini += X;
fim += ini;
}
int Answer(long long S, long long T){
if(S == T) return 2;
int inia,fima,inib,fimb;
Magic(S,inia,fima);
Magic(T,inib,fimb);
if(inia <= inib && inib <= fima) return 1;
if(inib <= inia && inia <= fimb) return 0;
return 2;
}
