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#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n, sol[40], p[40];
void afis()
{
for(int i=1;i<=n;i++)
fout<<sol[i]<<" ";
fout<<endl;
}
void back(int k)
{
for(int i=1;i<=n;i++)
if(p[i]==0)
{
sol[k]=i;
p[i]=1;
if(k==n) afis();
else back(k+1);
p[i]=0;
}
}
int main()
{
fin>>n;
back(1);
fin.close();
fout.close();
return 0;
}