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#include <bits/stdc++.h>
using namespace std;
ifstream f("damesah.in");
ofstream g("damesah.out");
int n,cnt,C[30],P[30],S[30],sol[30];
void bkt(int);
int main()
{
f>>n;
bkt(1);
g<<cnt<<'\n';
return 0;
}
void bkt(int i)
{
if(i==n+1)
{
cnt++;
if(cnt==1)
{
for(int j=1;j<=n;j++)
g<<sol[j]<<' ';
g<<'\n';
}
return;
}
for(int j=1;j<=n;j++)
if(C[j]+P[n+i-j]+S[i+j]==0)
{
C[j]=P[n+i-j]=S[i+j]=1;
sol[i]=j;
bkt(i+1);
C[j]=P[n+i-j]=S[i+j]=0;
}
}