cf 744B

#include<bits/stdc++.h>
using namespace std;

const int K = 10;
int n;
vector<int> query(vector<int> v) {
    if (v.size() == 0) {
        return vector<int> (n, 1e9+7);
    }
    cout<<v.size();
    for (int x: v)  cout<<" "<<x+1;
    cout<<endl;

    vector<int> ans(n);
    for (int i=0; i<n; i++) cin>>ans[i];
    return ans;
}

vector<int> mn[K][2];

int main() {
    cin>>n;

    for (int b=0; b<K; b++) {
        vector<int> zero, one;
        for (int i=0; i<n; i++)
            if (i & (1<<b)) one.push_back(i);
            else            zero.push_back(i);

        mn[b][0] = query(zero);
        mn[b][1] = query(one);
    }

    cout<<-1<<endl;
    for (int i=0; i<n; i++) {
        int ans = 1e9+7;
        for (int b=0; b<K; b++)
            if (i & (1<<b)) ans = min(ans, mn[b][0][i]);
            else            ans = min(ans, mn[b][1][i]);
        cout<<ans<<" ";
    }
    cout<<endl;
}