#include <bits/stdc++.h>
#include <unordered_map>
using namespace std;
#define ll long long 
#define ull unsigned long long 
#define nmax 20
#define MOD 1999999973 
#define INF 2123456789
//#define fin cin 
//#define fout cout 

ifstream fin("damesah.in");
ofstream fout("damesah.out");

int n;
int st[nmax], cnt;
int viz[nmax];
bool ok;

void Afis()
{
	int i;
	++cnt;
	if (!ok)
	{
		for (i = 1; i <= n; i++)
			fout << st[i] << " ";
		fout << "\n";
	}
	ok = 1;
}

bool Valid(int top)
{
	int i;
	for (i = 1; i < top; i++)
		if (top - i == abs(st[top] - st[i]))
			return 0;
	return 1;
}

void Back(int top)
{
	if (top > n)
		Afis();
	else
		for (int i = 1; i <= n; i++)
			if (!viz[i])
			{
				st[top] = i;
				viz[i] = 1;
				if (Valid(top))
					Back(top + 1);
				viz[i] = 0;
			}
}

int main()
{
	fin >> n;
	Back(1);
	fout << cnt << "\n";
	fin.close();
	fout.close();
	return 0;
}