#include <iostream>
#include <cstdio>
using namespace std;

const int n = 500000, q = 500000, V = 1000;

signed main() {
	freopen("yzh", "w", stdout);
	cout << n << ' ' << V << endl;
	for (int i = 1; i <= n; ++i) cout << i % V + 1 << " \n"[i == n];
	cout << q << endl;
	for (int i = 1; i <= q; ++i)
		cout << 'C' << endl;
	return 0;
}

数据也没有说随机啊？

（并无恶意）

违规紫衫。