#include "chameleon.h"
#include <bits/stdc++.h>
using namespace std;
//#define int long long
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << " " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << " " << j << " " << #i << " " << q << " " << #p << endl;
#define show4(x,y) for(auto it:y) cout << it << " "; cout << #x << endl;
typedef pair<int,int>pii;
typedef array<int,3>pi2;
//Query(vector<int>)
//Answer(int,int)
void Solve(int n){
int done[n+5];
memset(done,0,sizeof(done));
for(int x=1;x<=2*n;x++){
if(done[x]) continue;
for(int y=x+1;y<=2*n;y++){
if(done[y]) continue;
vector<int>v;
v.push_back(x);
v.push_back(y);
int hold=Query(v);
if(hold==1){
done[y]=true;
Answer(x,y);
}
}
}
}
