#include <bits/stdc++.h>
#include "grader.h"
#define pb push_back
#define fs first
#define sc second
using namespace std;
const int N = 520;
int t;
vector<int> in;
vector<int> adj[N];
void dfs(int v, int par){
in.pb(v);
for(auto u:adj[v]){
if(u != par){
dfs(u, v);
}
}
}
int findEgg(int N, vector<pair<int, int>> bridges){
for(auto v : bridges){
adj[v.fs].pb(v.sc);
adj[v.sc].pb(v.fs);
}
int l = 0, r = N;
while(l <= r){
int mid = (l + r) / 2;
vector<int> vec;
for(int i = l; i < mid; i++){
vec.pb(in[i]);
}
bool res = query(vec);
if(res){
r = mid - 1;
}else{
r = 3 * r / 4;
}
}
return r;
}
