rt，这种错误做法 AC 了：https://www.luogu.com.cn/record/175536326，提供hack 生成器：

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

int main()
{
	freopen("1.in", "w", stdout);
	cout << "1000000 500000\n";
	for (int i = 1; i <= 1e6; ++i) cout << i << ' ';
	return 0;
}