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#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int x[30],viz[30],n;
void permutari(int k)
{
if(k>n)
{
for(int i=1;i<=n;i++)
{
fout<<x[i]<<" ";
}
fout<<endl;
}
else
{
for(int i=1;i<=n;i++)
{
if(viz[i]==0)
{
x[k]=i;
viz[i]=1;
permutari(k+1);
viz[i]=0;
x[k]=0;
}
}
}
}
int main()
{
fin>>n;
permutari(1);
return 0;
}