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