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#include <iostream>
#include <fstream>
#include <stdlib.h>
using namespace std;
ifstream f("damesah.in");
ofstream g("damesah.out");
int n,sol[100],cont;
void tiparire(){
cont++;
if (cont == 1){
for (int i = 1; i <= n; i++)
g<< sol[i] << " ";
g<< '\n';
}
}
int elem(int k){
for(int i = 1; i < k; i++)
if(sol[i]==sol[k])
return 0;
for(int i = 1; i < k ; i++){
if((k-i)==abs(sol[k]-sol[i]))
return 0;
}
return 1;
}
void BK(int k){
int i;
for(i=1 ; i <= n ; i++){
sol[k]=i;
if(elem(k)){
if(k==n)
tiparire();
else BK(k+1);
}
}
}
int main()
{
f>>n;
BK(1);
g<<cont;
return 0;
}