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

#define int long long
#define pb emplace_back
#define f(i,n) for(int i=0 ; i<n ; i++)
#define F first
#define S second
#define fast ios:: sync_with_stdio(false),cin.tie(0);

int32_t main(){
	fast;
	int q = 200000, n;
	n = q;
	cout << q << "\n";
	while(q--)
	{
		cout << n << "\n";
		for(int i=1 ; i<=1 ; i++)
			cout << "1 ";
		for(int i=2 ; i<=n ; i++)
			cout << n << " ";
			
		cout << "\n";
	}
	
}