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#include <fstream>
using namespace std;
ifstream in("permutari.in");
ofstream out("permutari.out");
int n, p[40], uz[40];
void Afisare()
{
for(int i=1; i<=n; i++)
out << p[i] << " ";
out << "\n";
}
void GenPermutari(int k)
{
if(k-1==n) Afisare();
else
for(int i=1; i<=n; i++)
if(!uz[i])
{
p[k]=i, uz[i]=1;
GenPermutari(k+1);
uz[i]=0;
}
}
int main()
{
in >> n;
GenPermutari(1);
return 0;
}