Hello, PastePlz!

#include "bits/stdc++.h"
using namespace std;
int main()
{
	int N = 2024;
	ios::sync_with_stdio(0);
	vector<int> a(N + 1); set<int> s;
	for (int i = 0, x = 0;i <= N;i++) {
		a[i] = x;
		s.insert(x);
		for (int j = 0;j < 15;j++)
			for (int k = 0;k < 15;k++)
				s.insert(x ^ (1 << j) ^ (j == k ? 0 : (1 << k)));
		while (s.find(x) != s.end())x++;
	}
	int t; cin >> t;
	vector<vector<int> > v(15);
	cout << "15\n";
	for (int i = 0;i < 15;i++) {
		for (int j = 0;j <= N;j++)
			if (a[j] >> i & 1)
				v[i].emplace_back(j);
		for (int j : v[i])cout << j << ' ';
		cout << endl;
	}
	while (t--)
	{
		int s = 0, i, j;
		for (i = 0;i < 15;i++) {
			int x = -1;
			(cin >> x);
			if (x) s |= 1 << i;
		}
		for (i = 0;i <= N;i++)
			if (__builtin_popcount(a[i] ^ s) <= 1)break;
		cout << i << endl;
	}
}