#include "xylophone.h"
#include <bits/stdc++.h>
using namespace std;
int a[5010], _ok[20000];int *ok = _ok+10000;
int Query(int i, int j){return query(min(i,j),max(i,j));}
void Answer(int x, int v){answer(x,v); a[x]=v; ok[v]=1; }
void solve(int n) {
int l = 1, r = n-1;
while(l<r){
int m = (l+r+1)/2;
if(Query(m,n)==n-1) l=m;
else r=m-1;
}
for(int i = -2*n; i <= 2*n; i++) ok[i]=(i<1 or i>n);
Answer(l,1);
for(int x : {1,-1}){
for(int i = l-x; x==1?i>=1:i<=n; i-=x){
int dif = Query(i,i+x);
int x1 = a[i+x]-dif, x2 = a[i+x]+dif;
if(ok[x1]) swap(x1,x2);
if(ok[x2]) Answer(i,x1);
else{
int dif2 = Query(i,i+2*x);
if(max({x1,a[i+x],a[i+2*x]})-min({x1,a[i+x],a[i+2*x]})==dif2) Answer(i,x1);
else Answer(i,x2);
}
}
}
}
