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#include <fstream>
#include <cmath>
using namespace std;
ifstream f("damesac.in");
ofstream g("damesac.out");
int x[100],n,i,nr,t=1;
int valid(int k)
{
int i;
for(i=1;i<k;i++)
if(x[i]==x[k]||(fabs(x[i]-x[k])==fabs(k-i)))
return 0;
return 1;
}
int main()
{
f>>n;
i=1;
do
{
do
{
x[i]++;
if(x[i]>n)
{
x[i]=0;
i--;
}
else
if(valid(i))
i++;
}while(i<=n&&i>0);
if(i>n)
{
if(t)
for(i=1;i<=n;i++)
g<<x[i]<<" ";
nr++;
t=0;
i=n;
}
}while(i>0);
g<<"\n";
g<<nr;
return 0;
}