#include <iostream>
#include <fstream>

using namespace std;

ifstream f("damesah.in");
ofstream g("damesah.out");

int n, queen[20], sol;
bool col[20], diag_p[20], diag_s[20];

void backtracking(int l)
{
    if(l==n+1)
    {
        sol++;
        if(sol==1)
        {
            for(int i=1; i<=n; ++i)
            {
                g<<queen[i]<<" ";
            }
        }
    }
    for(int i=1; i<=n; ++i)
    {
        if(!col[i] && !diag_p[i+l] && !diag_s[i+n+1-l])
        {
            col[i]=diag_p[i+l]=diag_s[i+n+1-l]=true;
            queen[l]=i;
            backtracking(l+1);
            col[i]=diag_p[i+l]=diag_s[i+n+1-l]=false;
        }
    }
}

int main()
{
    f>>n;
    backtracking(1);
    g<<"\n"<<sol;
    return 0;
}