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#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n, m, i, j, sol[10], folosit[10];
void bkt(int k)
{
if(k>n)
{
for(int i=1;i<=n;i++)
fout<<sol[i]<<' ';
fout<<'\n';
}
for(int i=1;i<=n;i++)
if(folosit[i]==0)
{
sol[k]=i;
folosit[i]=1;
bkt(k+1);
folosit[i]=0;
}
}
int main()
{
fin>>n;
bkt(1);
return 0;
}