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#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int x[10],n;
int cond(int i)
{
for(int j=1;j<i;j++)
if(x[i]==x[j])
return 0;
return 1;
}
void tiparire(int i)
{
for(int j=1;j<=i;j++)
fout<<x[j]<<" ";
fout<<"\n";
}
int main()
{
fin>>n;
int i=1;
x[i]=0;
while(i>=1)
if(x[i]<n)
{x[i]++;
if(cond(i)==1)
if(i==n)
tiparire(i);
else
i++,x[i]=0;}
else
i--;
return 0;
}