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#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int x[9],viz[9];
int n;
void afisare()
{
for(int i=1;i<=n; i++)
fout<<x[i]<<" ";
fout<<"\n";
}
void BACK(int k)
{
int i;
for(int i=1; i<=n; i++)
{
if(viz[i]==0)
{
x[k]=i;
viz[i]=1;
if(k==n) afisare();
else BACK(k+1);
viz[i]=0;
}
}
}
int main()
{
fin>>n;
BACK(1);
return 0;
}