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#include <fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int x[9],n;
int cond (int k){
for(int i=1;i<k;i++)
if(x[k]==x[i])
return 0;
return 1;}
void tipar (int k){
for(int i=1;i<=k;i++)
g<<x[i]<<" ";
g<<'\n';}
void back(){
int k=1; x[k]=0;
while(k>0)
if(x[k]<n){
x[k]++;
if(cond(k))
if(k==n)
tipar(k);
else { k++;
x[k]=0;
}
}
else
k--;
}
int main()
{
f>>n;
back();
return 0;
}