#include<bits/stdc++.h>
#define ll long long
#define ld double
#define _1 first
#define _2 second
#define yes cout<<"Yes\n"
#define nah cout<<"No\n"
#define FFF ios_base::sync_with_stdio(0);cin.tie(0);
#define ipr pair<int,int>
#define ret return
#define intt int32_t
#define mid ((l+r)/2)
#define pb push_back
#define lll __int128
using namespace std;
ll tst, ts;
intt mo = 1e9+7, dx[] = {0, 1, 0, -1}, dy[] = {-1, 0, 1, 0};
ll mul( ll x, ll y ) {
ret ( ( x % mo ) * ( y % mo ) ) % mo;
ret x*y;
}
ll pwo( ll x, ll y ) {
ll res = 1;
for( ll i = 63; i + 1; i-- )
res = mul( res, res * ( ( 1ll << i )&y ? x : 1 ) );
ret res;
}
ll dvii( ll x, ll y ) {
ret mul( x, pwo( y, mo - 2 ) );
}
ll oo( char x ) {
ret ( ll )x - '0';
}
ll lgg( ll x, ll y ) {
ll u = 0;
while( x ) {
u++;
x /= y;
}
ret u;
}
ll mun( ll x, ll y ) {
while( x < y )x += mo;
ret ( x - y ) % mo;
}
ll add( ll x, ll y ) {
ret x + y - ( mo * ( x + y >= mo ) );
ret x + y;
}
ll lcm( ll x, ll y ) {
ret ( x * y ) / __gcd( x, y );
}
#include "doll.h"
#define endl '\n';
const ll M =1007, N = 2e5+ 7, N2 = 5e3 + 7, inf = 1e9+7 ;
ll n,m,t,r,b[N*20];
vector<int>g[N],c;
vector<int>e[2];
void dfs(ll i){
if(g[r].size()==0)
ret;
i--;
if(e[b[i]][i]!=inf){
b[i]=!b[i];
dfs(-e[!b[i]][i]);
ret;
}
e[b[i]][i]=g[r].back();
g[r].pop_back();
b[i]=!b[i];
dfs(-c[r]);
}
void create_circuit(intt Mm, vector<intt>a){
m=Mm,n=a.size(),t=1;
c.resize(m+1);
e[0].resize(N*20+7);
e[1].resize(N*20+7);
for(auto&i:e[0])i=inf;
for(auto&i:e[1])i=inf;
a.pb(0);
for(ll i=0;i<n;i++)
g[a[i]].pb(a[i+1]);
c[0]=a[0];
for(ll i=1;i<=m;i++){
if(g[i].size()==0){
c[i]=0;
continue;
}
if(g[i].size()==1){
c[i]=g[i][0];
continue;
}
reverse(g[i].begin(),g[i].end());
c[i]=-t;r=i;
ll o=2,p=0;
vector<ll>v[2];
v[0].pb(t);
t++;
while(o<g[i].size()){
v[!p].clear();
for(auto i:v[p]){
e[0][i-1]=-t;
v[!p].pb(t);
t++;
e[1][i-1]=-t;
v[!p].pb(t);
t++;
}
o*=2,p=!p;
}
while(g[i].size()<o)
g[i].pb(c[r]);
dfs(-c[r]);
for(ll j=0;j<2;j++)
for(auto u:v[p])
if(e[j][u-1]==inf)
e[j][u-1]=c[r];
}
for(ll j=0;j<2;j++)
while(e[j].size()>=t)
e[j].pop_back();/*
for(int i=0;i<=m;i++)
cout<<c[i]<<" ";
cout<<endl;
for(auto i:e[0])
cout<<i<<" ";
cout<<endl;
for(auto i:e[1])
cout<<i<<" ";
cout<<endl;*/
// cout<<e[0].size()<<endl;
answer(c,e[0],e[1]);
}
/*
void solve(){
}
intt main() {
FFF
//freopen("fcolor.in", "r", stdin);
//freopen("fcolor.out", "w", stdout);
tst = 1;
cin >> tst;
for ( ts = 1; ts <= tst; ts++ ){
solve();
}
}
*/
