#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
void create_circuit(int M, vector<int> A) {
int n = A.size();
vector<int> C(M + 1);
C[0] = -1;
for (int i = 1; i <= M; ++i) {
C[i] = -1;
}
int tar=1;
while(tar < (int)A.size()+1){
tar*=2;
}
while((int)A.size()<tar-1){
A.push_back(-1);
}
A.push_back(0);
int nw=1;
vector<int> X(2*n, 1e9), Y(2*n, 1e9);
auto dfs=[&](auto && dfs, int s, int e, vector<int> v)->int {
vector<int> l, r;
int m=(s+e)/2;
assert((int)v.size()==e-s+1);
if(s==e){
return A[v[0]];
}
for(int i=0;i<(int)v.size();i++){
if(i%2==0)l.push_back(v[i]);
else r.push_back(v[i]);
}
int cn=nw;
nw++;
X[cn]=dfs(dfs, s, m, l);
Y[cn]=dfs(dfs, m+1, e, r);
return -cn;
};
vector<int> temp(A.size());
iota(temp.begin(),temp.end(),0);
dfs(dfs, 0, (int)temp.size()-1, temp);
vector<int> ansx, ansy;
for(int i=1;i<nw;i++){
ansx.push_back(X[i]);
ansy.push_back(Y[i]);
}
answer(C, ansx, ansy);
}
/*
4 4
1 2 1 3
*/
