#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
auto ask = [&](vector<int> x){
cout<<x.size()<<"\n";
for (int i: x){
cout<<i<<" ";
}
cout<<"\n";
cout.flush();
int f; cin>>f;
return f;
};
auto get = [&](int l, int r){
vector<int> x;
for (int i = l; i <= r; i++){
x.pb(i);
}
return ask(x);
};
int n; cin>>n;
vector<int> a(n + 1);
int cc = 0;
for (int i = 1; i <= n; i++){
int v = 0;
set<int> st;
for (int j = i - 1; j > 0; j--){
st.insert(a[j]);
if (get(j, i) == (int) st.size()){
v = j;
break;
}
}
if (!v) a[i] = ++cc;
else a[i] = a[v];
}
for (int i = 0; i <= n; i++){
cout<<a[i]<<" ";
}
cout<<"\n";
return 0;
}
