#include "Encoder.h"
#include<iostream>
#include<vector>
using namespace std;
using ll=long long;
using vl=vector<ll>;
const int Mx = 250000;
ll t=0;
vl ad[Mx];
pair<ll,ll>dfs(ll u,ll p){
if(u!=0&&ad[u].size()==1){
ll k=t++;
ll it=1<<18;
Code(u,k*it+k);
return {k,k};
}
ll l=Mx,r=0;
for(auto i:ad[u]){
if(i!=p){
auto rt=dfs(i,u);
l=min(l,rt.first);
r=max(r,rt.second);
}
}
Code(u,(l<<18)+r);
return {l,r};
}
void Encode(int N, int A[], int B[]){
for(int i=0;i<N-1;i++)
ad[A[i]].push_back(B[i]),
ad[B[i]].push_back(A[i]);
dfs(0,-1);
}
#include "Device.h"
using ll=long long;
void InitDevice(){}
int Answer(long long S, long long T){
ll it=1<<18;
ll l1=S/it,r1=S-l1*it;
ll l2=T/it,r2=T-l2*it;
if(l2<=l1&&r1<=r2)return 0;
if(l1<=l2&&r2<=r1)return 1;
return 2;
}
