#include "island.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define pb push_back
#define all(x) x.begin(), x.end()
#define en cout << '\n'
#define ff first
#define ss second
#define pii pair<int,int>
#define vi vector<int>
const int N = 1e6+100, M = 1e5+10, K = 52, MX = 30;
void solve(int n, int L) {
vector<pii> dist(n);
dist[0] = {0, 1};
for(int i = 2; i <= n; ++i){
dist[i-1] = {query(1, i-1), i};
}
sort(all(dist));
vector<bool> vis(n+5);
vi pos(n + 5);
for(int i = 0; i < n; ++i) pos[dist[i].ss] = i;
for(int i = 1; i < n; ++i){
int u = dist[i].ss;
if(vis[u]) continue;
for(int j = 1; ; ++j){
int v = query(u, j);
if(pos[v] < i){
answer(u, v);
break;
}
vis[v] = 1;
answer(u, v);
}
}
}
