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#include <iostream>
#include <fstream>
#include <vector>
#include <iterator>
using namespace std;
vector<int> a, v;
int m = 0;
vector<bool> b1, b2, c;
template <typename T>
void showVector(vector<T> a) {
copy(a.begin(), a.end(), ostream_iterator<T>(cout, " "));
cout<<"\n";
}
int diag1(int i, int j) {
return a.size()+j-i;
}
int diag2(int i, int j) {
return a.size()+j-(a.size()-i+1);
}
void solve(int k) {
if (k == a.size()) {
if (v.size() == 0) {
v = a;
}
m++;
return;
}
for (int i = 1; i <= a.size(); i++) {
if (c[i]) {
continue;
}
int d1 = diag1(k+1, i), d2 = diag2(k+1, i);
if (!(b1[d1] || b2[d2])) {
a[k]=i;
c[i]=b1[d1]=b2[d2]=true;
solve(k+1);
c[i]=b1[d1]=b2[d2]=false;
}
}
}
int main() {
ifstream cin("damesah.in");
ofstream cout("damesah.out");
int n;
cin>>n;
for (int i = 0; i < n; i++) {
a.push_back(i+1);
}
c.resize(n+1);
b1.resize(2*n);
b2.resize(2*n);
solve(0);
showVector(v);
cout<<m;
}