#include <stdio.h>
#include <cmath>

using namespace std;
/*
ifstream fin("damesah.in");
ofstream fout("damesah.out");
*/
int n;
int x[14],viz[14],nrsol;

void Afisare()
{int i;
for(i=1;i<=n;i++) printf("%d ", x[i]);
printf("\n");
}

inline int Valid(int k)
{int i;
for(i=1;i<k;i++)
    if(k-i==abs(x[k]-x[i])) return 0;
return 1;
}

void Back(int k)
{int i;
for(i=1;i<=n;i++)
    if(viz[i]==0)
      {x[k]=i; viz[i]=1;
       if(Valid(k))
         if(k==n)
           {nrsol++;
            if(nrsol==1) Afisare();
           }
         else Back(k+1);
       viz[i]=0;
      }
}

int main()
{
    freopen("damesah.in", "r", stdin);
    freopen("damesah.out", "w", stdout);
    scanf("%d", &n);
    fclose(stdin);
    Back(1);
    printf("%d\n", nrsol);
    fclose(stdout);
    return 0;
}